i used mariner's club at RPR and my nephew loved it. he was 7 at the time and his big sister and i wanted to do the coasters so i signed him up. it was around $20 and hour i think and i just left him there for like an hour and a half. they have a craft area, tv area, play area, and game area. there weren't any other kids signed up because i took him in the early evening before dinner time. when i dropped him off i was worried about him but the person running the club that night knew that there were no other kids and she brought her son in to play with my nephew. i thought it was a great touch.
in just a few minutes, my nephew kicked off his shoes and went running off. when we picked him up, he was begging for me to let him stay longer and wanted me to let him go there everyday. he only agreed to leave when he saw that i had his favorite....PIZZA! he said that while there, they watched kids movies, played games and they were just fininshing an arts and crafts project when i arrived. he made me a necklace for taking him on vacation and a bracelet for his mom back at home.
i don't know how old your little ones are. my feeling was that anyone over 10 may get bored here. there didn't seem to be enough for their age unless there were others their age to play the older games with.
hope this helps!!