I got 3 of these and the quality seems questionable but decent. The reason I say this is that the ratchet on the tools seems a bit flimsy, and on the precision set, the chroming on a couple pieces seems to be a bit sloppy.
The Precision set has a lot of pieces in a nice case. And it looks like it will be useful for disassembly/assembly of various electronic components and parts. But if you were hoping it would also work with eyeglasses then you'll be disappointed. For all of my eyeglasses, only one bit fits the groove and it's too small compared to the length of the groove and it won't work properly. The other bit that would be ideal for the length of the groove is too thick so it won't go into the groove so you can't use it. At first it was weird to use cause it looked like the pieces were loose and wouldn't stay in place, but you have to push it into place till it kind of locks in then it works fine.
The 2 other ratcheting screwdrivers I bought are a strange bunch. If you didn't get both of these you kind of screwed yourself (no pun intended).
The first one is the gun looking one in the picture. It is adjustable to be in that gun position or in the regular screwdriver type shape. The end is hollow and has 1 reversible bit (philips and flat head), inside, but that is it. Nothing else, no other varying sized bits, no extender so it looks as if this one will be challenging to use in any semi tight environment or any environment that has anything other than the most common philips or flat head screws.
The other one I got is the T handle. This one I can see as being more useful since it has a extension for better reach and an assortment of bits of various sizes included with it. If you have the gun looking one, the bits and the extension rod can be used in that also so it works out nicely if you purchased both.
The ratchet on the latter two tools has 3 adjustable settings, clockwise, counterclockwise, and center which is fixed so it can work like a regular fixed screwdriver. It remains to be seen if these will stand up to any kind of abuse. It feels a bit flimsy, so over-tightening or trying to unscrew a stuck screw might break the ratchet mechanism.