I think that's why you need to have a hot shower/tub nearby and constant body contact.  Helps keep things nice and warm...

Never tried it myself, but I'm *dying* to!

Yes, it can get quite chilly.  If you notice, many of the nuru vids are in a sauna like setting or adjacent to a hottub.  But if the room is warm it is great fun.  It is the air flow that makes it really cold, so if the AC or a fan is blowing - it will get cold and cold quickly.  The irony is that it is probably better suited to wintertime when furnaces are on versus summertime when AC is on.  You can always open the window in our heat, but that never worked for me.  What can I say, I am a screamer.

The Nuru itself is used slightly heated or at ambient room temperature. There are some flavored and scented types. I found the flavored kind to taste awful.  The plain type is pretty much tasteless and odorless so I liked it better.

I have never had FS nuru, but my experiences with it were incredible.  It really helped that I was with a lady I thought was hot, mischevious and genuinely made me laugh.  In all the previous meetings with her, I had never heard her giggle to LOL to such a degree like she did when we played with the NURU.  In my experiences, the showering together afterwards was a suprisingly pleasant bonus and an absolute requirement.  

Before anyone asks, she has left the area, I haven't seen an ad or post from her in over two years and the nuru sessions started out as a favor to me.  I know there are a few ladies here that offer and if, for whatever reason, they are not right for you - then suggest it to your ATF, look online for NURU Gel, get a cheap air mattress and understand that there will be more prep time needed / mess so budget accordingly.

YMMV, but I liked it.