They're wonderful! Thank you so much WGT for providing this number and range of UEL options (and also for adding weekly, and now monthly, free-play UEL tourneys too).
To my mind, UEL is where the real game is at now. Many of the top players have embraced it for the true challenge it offers: just look at the leaderboards and see the names tackling these tourneys regularly.
If it wasn't wishful thinking, I'd almost suspect that WGT was setting the stage for this year's VUSO to be UEL!
P.S. If you are serious about learning UEL, I strongly recommend beginning with starter clubs (since it's a lot about relearning the game just as we did at the start) and balls (especially balls!), so that you're not using up ball life or losing any to unexpected results. In practice mode, the mulligan feature makes it so easy now to get a handle on the effects. Go out and have fun! And enjoy the experience of really having to think about every shot, and build a score, instead of just bombing long drives followed by wedges from artificially flat lies for a score that comes down to whether one or two birdie putts are missed in a round.