I have one and it has it's ups and downs. Depends on what you like.

One problem I seemed to have was putting too big of pieced of weed in there, and not being able to get any air through, and not being able to remove the little piece of weed. You have to put quite a small piece in there.

Another thing was getting ash in my mouth. There is no screen or room for any kind of screen at all, and since it's so small, getting a hot ash in your mouth is likely.

It does provide you with the 1 hit you want though.

I prefer to use it for hash myself. I can get 2 or 3 nice rips from some good hash, and 1 hit of good weed just doesn't cut it for me.

One good thing though about it is it produces lots of resin from small amounts of weed. When I was in college a few years back, I'd burn about 4 g's through it, then I'd push through 2 drywall nails with the small heads, heat up the hitter, push them through and out would come a nice long, gooey piece of resin oil. I was getting about a 2gram vial of gooey resin every 7-10g's I smoked through it.

So if you don't mind resin, it gives you a nice amount.

It is very stealth too. I would walk down the street and it'd look like a smoke, so it would look like I was just lighting a cigg.

So yeah, it has it's good and bad.