I personally would stay away from the tubeless tires. Just seems like something that is going to leave you stranded more often than the tubed tires. even if you punch a hole in a tire, you can usually put something over the hole and limp on it with a tube. I usually carry a $1 bill in my bag for this, or in case there is a strip joint on the ride.
I'm not going to try it again. I will say that they were a better ride for the first few miles and riding at lower pressure was nice which was the reason I got them. I was also under the impression, for some reason, that putting tubes in was a more difficult process, not a 5 minute deal.