I bought this exact kit about three years ago. I got it on eBay for a lot less than retail. It worked well, but thankfully they provided enough material because I got the water too warm and the molding compound hardened before I could put myself into it, so I had to throw it away.
The results from the second try were very impressive. It's very detailed and very firm, moreso than the real thing. However, even to this day it still has a moderate chemical smell/taste even though I let it cure for 48 hours prior to removing it. I don't know if it's toxic so you might want to put a condom on it if you intend on sticking it in an orifice.
One tip though...if you do your scrotum too, you might want to shave or use a plastic baggy as a guard because removing your hairs from hard silicone is rather painful.
