Phenazepam is a bad time waiting to happen. Seriously, no recreational value, unless you just want to black out from life for a 10 hours at a time. Don't buy it.
Before you read the rest of this: if You are looking for something to help with come downs, and HAVE to go the research chemical route, I would vote Etizolam from my experience. That said....
Etizolam powder is nice, but you HAVE to dose correctly. I made the mistake (while I was tweaked out on numerous drugs) of sticking my finger in the etizolam powder bag and licking it, and woke up 12 hours later with no memory of a damn thing. I find etizolam to be mildly euphoric (as someone who LOVES benzos), similar to alprazolam but less "I'm on top of the world" and more "I'm just super chillin right now" if that makes sense. I would say from the benzos I have tried, Xanax > Etizolam > Kpin's is the order of "feel good."
I've heard most of the new Benzo RCs are shit, but thats just what I have read, I haven't bothered spending any money on them, because I have legal RXs for benzos so don't quote me on that.
I don't have too much more information to contribute, however I will mention that Etizolam apparently increases estrogen in the body a tad bit. As someone with very minor gyncomastia (male tits), after using etizolam for about 2 weeks, I noticed a slight increase in size of my breasts, and more tenderness. After stopping etizolam usage, they went back down to normal within a week. However I worry that with prolonged use, it could cause permanent size increase. Just something to keep note of I guess.
Peace.