Smell is amazing. Says to mix with lukewarm water but this stuff becomes COLD in minutes. Set your thermostat real high and get your house toasty first. Do this on the floor by the fireplace if you have one. Also, once you step in, there's no getting out to get forgotten condoms, kleenex, spare towels, etc. So have everything ready and within reach FIRST. Pre-open condoms. It's next to impossible to open them once you're in the goo! Use 6 towels to make the play pit instead of the 4 they suggest so you can fit in without worrying about dripping on the floor/carpet. Have 2 spare towels to dry/wipe off. Then you need 2 more when you get out of the shower b/c the ones you use to make the pit will get goopy. You need LOTS of bath towels to use this, but it's sooo worth it!
Will definitely try this again with a little more forethought and planning. Would have been way more fun had we had the house warm and everything ready.