Well, Canciones del Mar got right back to me. The email bore the owner’s name, but it might have been a staffer that actually sent it.
I've not heard from the others (Copa Cabana, Paradise Hotel), with whom I mentioned CRT VIP membership. I didn't mention CRT VIP with Canciones del Mar, because they don't participate.
Canciones del Mar did send me the annoying form requesting a 50% payment commitment in the event of a no-show. As mentioned by others above, this is negotiable. 50% of the first night seems reasonable to me. The owner is on-site, so there is someone to negotiate with.
By way of comparison, Del Rey in San Jose wants 100% commitment for the first night for a last-minute no-show, but the Del Rey does honor advance cancellations (I forget the detail of how many days in advance is required for "free" cancellation at the Del Rey).
Canciones del Mar offered me $59/night for a one bedroom suite. Photos and descriptions are on their web site. I'm left with the impression that -- relative to US or Bangkok standards -- that this "suite" is at the high end of a normal hotel room and the low end of what one ordinarily would consider a suite. Since it's oceanfront, and since the other oceanfront competitor (Copa Cabana) wants $99/night (per their web site) for a room, the Canciones del Mar seems to be a bargain.
Canciones del Mar and Copa Cabana seem to be equidistant from the Beatle Bar, and so equal on that count. See Jaco map at
http://www.cupotico.com/maps/Jaco%20maps.html .
At this point, I'm having second thoughts about going to Jaco in the off season, but Canciones del Mar is high on my list for a high-season visit; Of course the rates will be higher then.
What impressed me the most was Canciones del Mar's arrangement to have a driver waiting for me at the airport with a sign with my name, just like limo drivers. That makes it possible to go straight from the SJO airport to Jaco, if you want to, without booking your first night in town.
Copa Cabana offers a “free†van ride, but the price is obviously built into the nightly rate. So, you pay for it whether you use it or not. What’s this deal with a “30 minute free massage†at Copa Cabana? I’m leery of that. Life has trained me to be cynical about “free†offers and I’d expect some “surpriseâ€.
And, while no one has replied to my post publicly, I thank the several people who sent PMs with valuable details and insights.