Hantek's Hardware works as descibed, and they're making progress working out the software issues we've found so far.
Not sure about Uni-T, its appearance indicates its been espcially cut down to a cost.. I can only imagine the inside.
Quick look at a vew videos - hardware looks good for the price, nice power supply compared to Hantek, not sheilded though., eww for the fan.. Software interface side looks terrible.
Definitly spend a bit more for a Siglent if you can..