I'm on my third, and about to purchase my fourth. One of the things not listed on the site is that it has two timezones. This is great if you're travel a lot. Using the memo feature takes a bit of work, but it's good for important numbers, passwords, etc.
I haven't used all of the Triathalon features, but when I was running, it was easy to recall past lap times.
I'd definitely recommend this watch unless you had small wrists, or were very sensitive to the additional weight. It's not HUGE, but it's not small either.