Copied this from NEWBIE section courtesy of Orange:
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-HOTEL ROOM- Before going to CR, you should reserve a hotel room. While you may be able to get a room at many places just walking up, you will be locked out of the more popular (& monger friendly) hotels. Some of them fill up months in advance. Make sure the hotel allows female "guests" if you're planning to bring girls back to your room. Some hotels do not allow working girls at all, others charge high fees per "guest".
Some of the monger and chica-friendly hotels include (incomplete list):
1. Sportsmen's Lodge (SL)
http://www.sportsmenscr.com (Preferred hotel of many CRT'ers; frat like atmosphere; large sports bar; lots of tv's (incl all PPV events-boxings, MMA, football); rooms range from $60-150/night (less CRT VIP discount); indy chicas work the bar from morning till closing; free breakfast is only fresh fruit and toast)
2. Hotel La Amistad
http://www.hotelamistad.com (a block from Sportsmens; very nice hotel; rooms start at $69 (less CRT VIP discount); also a favorite of many CRT'ers; no chicas working on-site; free breakfast is good)
3. Hotel Del Rey (HDR or DR)
http://www.hoteldelrey.com (bars in the hotel are where chicas can be found literally 24 hours/day, the rooms are pretty bad, uncomfortable, old, most would not recommend staying there-only visit the bars to pick up chicas, no CRT discount)
4. Hotel Castillo
http://www.hotelcastillo.biz (budget hotel; starts at $38/nt (w CRT VIP discount); very basic; free breakfast sucks)
5. Hotel Dunn Inn
http://www.hoteldunninn.com (renovated rooms, start at about $70; new large sportsbar opened feb 2011; good food but pricey; CRT discount)
6. The Freebird Hotel
http://www.thefreebirdcr.com (nice hotel close to 2nd ave; 2 blocks from HDR; most rooms share bathrooms; but has 2 suites; rooms start at about $40/night (CRT discount))
7. Hotel Morazan
http://www.costaricamorazan.com (budget place $45-50/night; ok rooms-basic; reports of smoke smell; no CRT discount)
8. Nuevo Johnson (budget hotel @ $15/night)
http://www.hotelnuevojohnson.com (very very basic, bad part of town, not recommended unless on very tight budget)
-There a several hotels that offer discounts to VIP members. Staying only a few nights will save you enough $$$ for another session. Of the ones listed above, #1, 2, 4, 5, and 6 offer a CRT discount. Also be advised that some hotels charge a "guest" fee (aka chica fee) to bring up a working girl to your room. It ranges from $10-25 per girl. In these hotels, you have to sign them with reception as you enter and they tack on the charges to your bill.
Chica fee hotels:
-Del Rey ($10)
-Sleep Inn (next to Del Rey) ($25)
-Holiday Inn ($80

)--they don't want guests bringing hookers in.
-Nuevo Johnson ($3-4)
No chica fee hotels:
-Sportsmens
-Amistad
-HLH
-Castillo
-Morazan
-Dunn Inn
-Mona Lisa/Taormina
-Scores
-Zona II
Hotels that DO NOT WANT our kind of business include:
-Radison
-Hotel Grand Costa Rica-WORKING GIRLS NOT ALLOWED IN THE HOTEL AT ALL
-Holiday Inn-hence the $80 guest fee
-Balmoral
-Best Western
-Hotel Presidente (Prez)- No longer offering CRT discount. They have a dress code for chicas (no revealing clothing), and a 1 chica at a time rule. They don't want hookers in their hotel either.
-LOVE MOTELS- If you can't take a girl back to your hotel room for whatever reason, there are several short-stay hotel(motel) options. The price ranges from about $10 to $35.
La Oficina (A9/C1) is probably the best in terms of value and quality. It costs ¢6500 for 3 hours. They have jacuzzi rooms for ¢8500.
Hotel Morazon (A1/C7) rents rooms (when available) for short-time for $35 for 2-3 hours.
Motel Eden- is the fanciest (read: most expensive) one. It is the most discreet, you drive (taxi) into a garage and the door closes and you walk into the room. This is popular with locals who don't want to be seen with their hookers/mistresses. It's located by the highway to Limon and it costs ¢20,000 per chica.
Hotel Asia (AC-1/C11) is located just around the corner from Del Rey. It's the cheapest (around $10), but it's the least clean and insect free. It is on Calle 11, between AVE 1 and CENTRAL. It is clearly marked, you can't miss it. It is across the street from a large parking garage.
( good luck)