I bought a second ms500i a few weeks ago. Selling off a 390xp and my 572xp (cuts good, but hardly ever starts one pull warm). My first one is well over a year old and it’s seen a good amount of trigger time. It also took a ~40’ drop out of a tree when a big ash top didn’t go as planned. Replaced AV mounts and a wrap handle, she was back in business. (Had to order AV parts from Greece, got the part number for the handle bar from the Euro IPL and my dealer was able to order it, even though he couldn’t see the IPL himself).
Bare in mind, I have a lot of 70cc saws (7900, 044 10mm, ms440, 372, 572, etc). Numerous 461, 2171, 371, 441 and 460’s over the years too. This 500i is by far my favorite. Only thing that will sway your mind would be a ported saw.