I would expect this to be a decent camera. Purely aimed at the amateur, of course. It should have a modern meter -- probably center-weighted averaging type.
I think this comes with a so-called kit lens. I would expect decent performance from the lens, as most of these are within a range that can produce good photos.
Are there other more advanced or more sturdy K-mount cameras available? Probably, as the K-mount was in production for decades by Pentax, Ricoh, Chinon and others.
I have an older Vivitar screw-mount camera that's very reliable and fun to use.
Keep in mind that the Vivitar brand of today doesn't appear to be of the same quality as the Vivitar brand of the yesterday.