I am guessing that they are Kenwood or Yaesu (rarely Icom) reference designs that are being made by Baofeng, Wouxun or Puxing for CrystalM (their looks remind me a lot of Baofeng models). That means the radio is usually a pretty solid design, if a little old, with good construction but the software and electronics components are lower quality.
I recently played with the CrystalM pro handheld and came away impressed. There doesn't seem to be much else at that price point with similar features, the most useful being auto-squelch. It still can't match the big brands for scanning speed and couldn't match my Wouxun KG-UV8D for receiver sensitivity although the antenna might be a different gain (the owner had a hissy-fit when I wanted to unscrew the antenna to check the gain that is usually printed on the base).
The average human walks 1,500km per year and drinks 83L of beer which means we're getting 18km/L.