I've used both the Q-Up and Expressimo and both are pretty fiddly to set but both do an admirable job once you get them set up.

The Q-Up is plasticy and not aesthetically pleasing, and if not set properly can really pop your tone arm up off the record since it's lifting is spring based.

I like the Expressimo better since it's a solid piece of brass and uses a small weight and leverage to perform the lifting rather than a spring.  It's was harder for me to set up than the Q-Up but once I got it right it pretty smoothly lifts my tonearm
Great info. The safety razor was recommended for my LP12 . Need to find one for my Kuzma TT.
i like the concept of this DIY lifter, because it uses your existing manual lifter. But the mechanism looks big and ugly and complicated. 
https://youtu.be/eScAcVzAcSg