Quick run through.
Speeds. on all my videos I have posted the speeds and depth of cut info on all the vids. It varies greatly by type of wood.
So my take on 23’s are don’t do it. If you think you want them because other “small” machines need them this is different. This machine you 2 per x and y axis. So you are already getting double an you aren’t also fighting the long lever issue. This machines weakness is rigidity not power.
Vertical, for storage, sure if you take the heavy cutter off of it. But I feel this would lead to inaccurate cuts if you always used it in this manner unless your were just using a Dremel type tool.
Solid, for me the creator, it does what I want it too. Could it use more, yes. Although every machine you will ever use you will eventually want more. I cut wood and plastic with no issues at all, aluminum takes careful setup and a little better knowledge of tool pathing, but I have several aluminum videos. Again, it does well for me, but I am very biased. I also have never used another company’s “small” machine so I have no idea if mine/this is better or worse than anything under $5K.