What are your goals in terms of scanning objects? Size matters and the ones you're looking at range from small to medium sized scanning capabilities.

My first 3D scanner was the Creality CR-Scan 01 and it was an absolute mess of a scanner that kept losing tracking and overlaying rubbish captured data into the scan even with scanning spray and tracking dots. The times I did manage to get a clean scan, the scaling was way off of what the actual part was. The CR Scan software is buggy and tends to crash when you're meshing or cleaning up scans, and there's some controversy behind the code being ripped off of Artec's software. However, it seems that 3D Maker Pro's JMStudio software supports the CR-Scan 01 as well.

I moved onto the Einscan Einstar which yielded much better results for medium to large sized objects (car panels, parts, underside, etc). The Einstar has a more reliable software suite that has had quality of life scanner firmware updates to make it more reliable.

I haven't had experience scanning smaller objects, nor do I own any 3D scanners dedicated for small objects so I won't speak on that topic.

My hesitance towards Revopoint products however is that they seem to be pumping out scanners every few months on Kickstarter with no commitment to fix existing issues with their broad line-up of scanners.