I had a Makita 10’ slider and it was a great saw but it went to a friend as a favor .
I recently retired a Hitachi 12" slider which I found way too big and not that accurate no matter what blade I used .
My latest saw is a 10" Dewalt non slider and I am very happy with it but for cutting mitres on a box for instance I use my crosscut sled and I also have dedicated mitre sled which is super for a lot of things .
All in all I am not a big fan of mitre saws unless I am at a jobsite where they are handy and for job site trim work I would go for the Makita 7 1/2" with a good blade but the drawback with it is that it only tilts one way .
My fiend has a Festool mitre saw and I am not that crazy about it and it looks and feels like a cheap saw .