I have a QL-Y5F and highly recommend it.
Yes if the servo arm control electronics go, then it is a boat anchor, but quite a few of us here are happily using electronic servo arm turntables without any issues.
The arm is highish midmass, but can be adjusted downwards in mass by using lighter headshells and counterweights (headshell mount is standard bayonet, and the counterweight is the same thread size as technics SL1200mk2 series - so options are easy to find)
It does have one weakness - the plinth tends to resonate/vibrate.... if you seek out the threads about the QL-Y5F you will find several where people have described resolving vibration issues (including mine)
I replaced the feet with economical and damping rubbery feet - including a fifth one in the middle, which damped the tendency of the underside baseboard of acting as a large drumskin...
I also filled the body of the plinth with 3kg of plasticine.
Also of note, this is NOT a suspended table, so you do need it to sit on an isolated/isolating platform....
With regards to performance - this is a very serious table, and very versatile - you can put just about any cartridge on it and have it work well...
I have a very high compliance ADC SuperXLM which normally would be matched with a very low mass arm, but with the servo damping on the QL-Y5F it sings beautifully. (I also set it up with the lowest possible mass headshell and CW when running that cartridge)
But I also run Benz, Sony and Dynavector MC's on it as well as a wide range of high compliance MM/MI's.
Great Table!
Bye for now
David