I wish there was an affordable trimmer that approached the quality of hand trimming. My experience with several of that style trimmer was that they only trimmed down to a certain level. Folded leaves and all stems were usually left sheared off but visible.
The reason that I purchased this trimmer rather than the much, much cheaper iPower style bowl trimmers is, what appears to be, a very robust design and the large capacity.
Most of the trimmer is of metal construction including the gear box. The plastic covers are flat and can be easily replaced of broken.
The only down side that I have identified is the weight of this thing. It is fairly heavy due to all of the stainless steel. I would certainly repeat this purchase if I had it to do over again.
I have this trimmer also the electric one works fantastic I only use it for dry trimming and you have to wait till the leaves easily crumble off the bud to get a good trim.