yes its great. The only bad thing is that they break easily,, me and my friend went through 4 light bulbs just this weekend lol. You dont really forget anything and I was talking to myparents after smoking a whole 20 in it on the phone with no problem. My eyes were glaazed over dark red though, but other than that its great. And i dont think you can smoke the used stuff and feel anything.. If its black def. not but if its brownish it might still have somthing left.