Doc raised a lot of interesting points. Most of which I agree wholeheartedly with. Some I'd like to emphasize and some I'd like to qualify or add a caveat.
Nevada_Doc wrote:
How much you learn really depends on you.
This is absolutely 110% true. It is too easy to fall back on your English ability. This is particularly true when we choose to hang out with and speak English with our buddies at the BM happy hour (or with fellow students outside of class), but is also true when with the chicas to use the english words or whole sentences when our spanish fails us. It is even true while in class (although the teacher will usually rap you on the knuckles with a ruler if you do that

just kidding)
Nevada_Doc wrote:
The schools that actually have websites are usually more expensive, and cater to foreign students, typically American. They may even be set up to offer credits, and if they are, they are probably quite good.
Obviously this is the route I took in my search and so can't speak to the quality or the cost savings of going with a smaller more local educator. For me, I guess its like going with G&G. I felt better having it lined up in advance and knowing for sure that I was going to have a quality experience. It may have been more expensive than I could have or should have paid, but didn't seem that way to me (that sounds like the excuse the cien/hr payers use). The problem is how do you know whether a completely unknown private instructor is any good? At least, between reviews on other websites (such as the one I listed above) and the fact that they're "accredited" enough to have their credits accepted by US colleges, one can get some assurance that their money will be well spent on any of the top schools I mentioned. Perhaps, other members can recommend particular private tutors that they know to be good.
Nevada_Doc wrote:
I have spent several weeks attending one of them, and it was enjoyable for its student life and atmosphere as well as being a good place to learn.
Also quite true. CRLA had a very nice atmosphere, with a nice courtyard to hang out in between classes. The other students were quite varied. Only about half were americans, usually old farts like myself. The other half were mostly Europeans, usually young and attractive girls

. Add in the opportunities for home stays, dancing and cooking classes, internet access, and the plenty of free time to pursue other "interests" etc. and it was a very nice way to spend my vacation.
Nevada_Doc wrote:
I recommend that anyone who can afford it choose private lessons....Private lessons in Spanish are so cheap in Costa Rica that it is a better use of your money, because you will get more out of them. Take a group lesson and your will end up with the lousy accent of other American students.
I agree that private lessons are better, but they are also usually more costly. Failing that try to pick a school with small class sizes. At CRLA, when I was there, the typical class had just 3 students. Though, I signed up for all group lessons, I was even lucky enough to fall into a "group of 1" on many classes and ended up getting private lessons at the group rate. The other students did hold me back somewhat. OTOH, the private lessons were so intensive that I appreciated the opportunity in the group sessions to sometimes be able to just sit back and listen to the teacher instruct the other students.
I disagree somewhat re: pronunciation. The teachers were constantly correcting our pronunciation to the point that I could easily tell when my fellow americans were speaking incorrectly (the european students tended to have much better pronunciation). Incidentally, I have yet to get a BM chica correct my grammar or pronunciation for me with any sort of regularity even after I implore her to correct me.
Nevada_Doc wrote:
If you are a more advanced speaker, beyond the stage of learning grammar rules, then all you need is somebody to talk to, somebody with an education and good pronunciation, so that you don't pick up bad habits.
Again, 110% true. I learned enough in just a month to be able to feel comfortable enough to do just that. Unfortunately, after I got back to the states I didn't have the opportunity to do just that and have lost a lot of what I learned, but I'm sure most of it will come back to me once I'm back down there.
Here comes the caveat I mentioned at the beginning of the post. If you want "somebody with an education and good pronunciation, so that you don't pick up bad habits" that probably eliminates 99% of the "working" chicas you'll meet as good candidates for teaching you spanish. I've seen that idea floated around here quite a bit including at the end of Doc's post.
Nevada_Doc wrote:
OF COURSE, YOU CAN LEARN A LOT FROM THE KIND OF TEACHER THAT CHARGES $50-$100 FOR A WHOLE NIGHT, BUT OFFERS MANY OTHER BENEFITS. SHE'LL BE HAPPY TO SPEAK SPANISH WITH YOU, AND SHE'LL TEACH YOU THINGS THAT ARE NOT IN THE DICTIONARY OF THE ROYAL ACADEMY OF SPAIN.
I'm not sure if Doc is referring to a
teacher that also is interested or willing to provide other benefits or a
"working" girl that is also willing to teach you some spanish. It's certainly nice to get it all in one package either way and to learn aspects of spanish not normally covered in formal lessons. But I wouldn't rely
solely on this type of arrangement with a "working" girl, unless you don't care about learning proper grammar and conjugations or speaking with a "barrio" accent.