Got my UT136B and UT136D in today.
I like the feel. They fit the hand well and don't look as cheap as in the video / photos. VERY solid...I was expecting more plastic creaking at this price. The manual has some pretty brillant engrish. The leads are certainly adequate for the price. I do wish Uni-T would color code the input jacks.
In the UT136D, there are three one-turn pots right next to eachother, labeled VR1, VR2, VR3. VR1= closest to the center screw post and is for DCV, VR2= next one and is ACV, VR3=...? - there is no capacitance range on the 'D and the 'B model has the additional fourth pot way on the left which probably is for capacitance, so I don't know what VR3 does.
DMMCheck Plus measurements are very good for both meters, especially resistance which is at most one count out. Resistance auto-ranging is VERY slow.
Tore down my UT136D as it wasn't doing NCV very well. Nothing looked wrong, soldering looked top notch. LCD came off when I flipped the board (it is held in by pressure, and there was no glue on mine), cleaned with IPA around the NCV area, and tried again...almost nothing. My Amprobe PM55A that I got the day before worked flawlessly and things are plugged in, so I know it has to work. Then I read the manual... and it's for 220V only =( If you are in the USA like I am, don't bother with the UT136D for the non-contact voltage detector; it won't work. Too bad I couldn't find a manual for this beforehand, oh well =(
Nothing I have tried in this price range comes close with autoranging, features, and build quality. I'll still use the Flukes and Agilents on the bench but have no problem using this for basic stuff in the field.