RockNRoller RMH1 Mini Handtruck

I bought this "handtruck" because my buddy had a proper rock 'n' roller cart and I wanted something smaller to transport my 88 key Kronos in flightcase and sometimes some speakers. I thought their cart was good so I bought the hand truck without proper investigation. Three major flaws render it completely unusable for its stated purpose:
- the nuts vibrate themselves off all the time
- the handle is completely flat so if you have something larger than the length of the handle resting against it (e.g. a keyboard in flight case or two speakers stacked) there is no way to hold it
-the bottom portion is made from the same rigid square-ish tubing as the rest of the hand truck, which prevents it from sliding under whatever you want to carry.

Terrible product, don't waste your money.