Tumble Trimmer?

Has anyone here tried the Tumble Trimmer or Magic Trimmer?

Pro's / Cons?
Advice on use?

Thanks Guys

p.s i realize the buds do get quite a bit of contact via the trimmer but that's an obvious con.

Unless you are trimming major poundage, scissors are much easier to handle and clean.

Yes, and the buds come out much nicer. I've heard the tumble trimmer knocks them all around and wrecks all their crystals and cuts the buds down into rock-hard little nuggets. Didn't sound good to me.