I'm amazed at how quiet and smooth this engine is! Vibration is amazingly light, it's very responsive and powerful. It shifts as slick as a Honda, Handling is superb, this is a very flickable bike! No problems or niggles at all with it, In my personal experience with bikes, this is the finest 500cc single I've ever thrown a leg over, and I've ridden several variety's of them. RE got it right with this one. I removed the rubber blocks from the fins and couldn't hear anything different, so out they stay and it looks much better. My riding Buddy's have nicknamed it the "Ol' Poop" surely some of you will remember the ol poop from cycletoons magazine back in the day. If you do remember you'll know why the name will stick with it. The UCE Rocks!
I just did my 300 mile oil change, the oil came out clean. I strained it through a T shirt and found nothing, the screen was clean and the magnets both had a small amount of black "dust" on them, nothing shiny or chunky to be found. I did find the small O ring in the oil filter was cracked, but not alarmingly bad. The filter is a bit of a chore to change, not as bad as the hinged filter on my old BMW though. My 300 mile impressions are much better than the 225 mile impressions.