In all honesty, i think it's a very shitty stimulant.
If you want to get the "buzz/peak" from it be prepared to have a comedown worse than meth for less of the buzz and euphoria.
I have mixed it with meth and G though to recreate some pretty weird but tingly feelings, but wouldnt really say it is safe doing so. Felt good for a while though.
One thing that scares me about BZP is nitrous use on it after you smoke weed. Its really different to other n2o + drug mixes and pretty damn psychotic. Feels like your brain cells are just popping like a big solid overdose of IV meth.
I don't think its a safe chemical at all. And think all the piperazines are shit and a joke to minimise harm from illegal more popular drugs. The only reason its safer is because its not made in the "backyard" setting. If meth and MDMA were 99%+ pure synthed in safe lab settings, i think they'd be way safer than any piperazines, especially MDMA anyway,
I heard if you inject it though the rush is a lot like injecting coke and only lasts a few minutes which is interesting because a high dose of BZP can last well into the next day with the comedown effects and all. Less ways for it to get into ecstasy pills then. Since it's so cheap.
I don't recommend this drug to anyone and frankly don't give a shit if its being made illegal.
I have't tried MeOPP but some people like it, but mCPP is probably the most horrible drug I've ever tried, worse than eating random plant sap in a forest. And 2CB-BZP looks like it is rather shitty and useless too.
Edit: Everyone reacts so differently to piperazines more than other other class of drugs. I've seen people spin out and think they've taken a psychedelic and spew lots and lots from small doses of BZP. I've seen people think a medium dose feels like a speedy version of ecstasy, but still be able to chill out, seen peoples get nothing from it, and worse.