Metron

Find it to be very reliable. Only downside is that everyone will always ask "What is our elevation now?"



The alarm is pretty quiet so you need to place by your head when you sleep.



The heart rate monitor makes for interesting tracking of a climb or any other outdoor activity.



Takes a little while to become familiar with the features, but once you do it is very easy to pull up data from previous adventures and track your rate of progress for your current ones.



The most used piece of gear I own and the last thing I would want to part with (Besides my girlfriend of course)

I own one since 2004. I like it and had no problems using it during those 3 years.
I would buy the same one again, although the price in Europe was almost 500€ by the time I puchased.