I get alot of error messages if I haven't waited long enough for the shop & machine to warm up. It must be considerably warmer for the probe than to carve a project.
If what I'm carving is soft and/or has paint on it there will be noticeable damage. I've lost paint on the wood carvings I probed, & broken (disposable) plaster castings of items I didn't want to scratch.
The result at 'best' setting is very good only if the item you are copying is good.
It can be cleaned up in the 'editor' if you know what you're doing.