I bought one of the Evolution metal saws earlier this year. It cuts tubing and angle more accurately than I have been able to cut with my 4x6 bandsaw. The issue I've had with my bandsaw is that it is difficult for me to get it adjusted to make accurate cuts. If I move it in the shop, then the adjustments seem to get messed up.
There are a variety of website discussions about buying and adjusting 4x6 bandsaws to cut accurately. Let's just say it's easy to find those discussions, and they provide better information on them than I could try to say here.
The thing about the Evolution that I don't like is that it is heavy. I also find it harder to see where the cut line is going to be compared to my Dewalt miter saw I use for cutting wood. Something about the saw guard seems to shade the cut line on the Evolution so I've started marking the cuts with a silver marker that is easier to see.
Seems to make a lot of metal chips to clean up. Eye protection is a must have.
If you are cutting tubing and want a good tight fitup, I personally think the Evolution is very nice to have. But I would also say to at least consider a 4x6 bandsaw as you make your decision.