Had mine since 2004, orig 5th element coil, but now running Totems. All up weighs 38-39lbs.
Great fun & fast downhill obviously. The real surprise is how well it climbs. Not fast uphill, but if you can turn the pedals, it will go up almost anything that I can't manage on any other bike.
The hard part is pedalling it. When I'm fit, 4-5 hours in the Peak is fine, not fit & it's horribly hard work.
Trail centres - it goes round them OK, but is just way OTT - I take a shorter travel lighter trail bike for that, as the Yeti looses all momentum too easily with occasional inclines. (e.g. Spooky woods is horrible on it)
All round though, for Sundays and night rides, it's definitely weapon of choice, unless I'm in a hurry, or want an all day epic.
All that said, 2 mates used to have them and both have switched to specialised (1 enduro, 1 SX trail). Both are v impressed with how fast & planted they are in comparison to the Yeti.