I love my AceTimer 8+12, however, being an electronics guy I felt the need to hack/mod it.
AceTime Pro's
Bang for the buck
Quite (4 pods spinning 10' away from bed does not disturb)
Great with "gens", ETA 28xx, Seiko, Miyota, Vostok
AceTime Con's
Fuzzy Logic = no logic
Does not work well with A7750, Seagull, 50% of 21J's, or "one way" automatic movements
No independent on/off per pod on the big guys like my 8+12.
No manual override for CCW or CW
The problem with the one way auto movements is the fuzzy logic is simply-- on MAX 1000 TPD, 500 CW then 500 CCW
From my experience the A7750 needs 650 TPD CW. See the issue? All the winder does with my A7750 and Segull and some 21J's is extend their reserve from ~36 hours to ~96 hours/1 week.
I hacked mine to include a CW/CCW/Fuzzy switch and separate power switch for each pod. Works with anything now.
Highly recommended, but just be aware if you are A7750 heavy.