Huge gate opening, pretty light, and priced nicely. They are a tad big, but I'll live with that verses fiddling with the latest micro-biner. Bought 36 of them and glad I did.

Big and heavy for a wiregate, but crazy strong and easy to clip. Great for ice climbing.

Outstand Biners. The workhorse of my rack.
Practically everything from my cams to 'draws has these. Never had any prolems with snags or clipping bolts. I like the gate "feel" as some others are too stiff.

When I started buying my own gear in 2000, I bought 16 of these. I am in the process of replacing them.

Pros
-Gate clearance is huge and there is lots of clipping room.
-Contrary to first impressions, they don't stay cross loaded (a common problem with OP D's)
-Easy to tell which side is "up"

Cons
-Snag like crazzy on EVERYTHING! Add a little pump and these biners are downright scary hard to get off your rack. These snag much worse than any other biner I have used.
-Hard to clip into bolts. They have to be cocked back and makes reachy or hard clipps extra hard. But they work well for rope clipping.
-Hard to get off and on quickdraws
-Relatively weak gates. The wire gate on several of them can stop part way. This hasn't been a problem yet, but I am always scared of a half open gate. Cam Lube (aka White Lightning) helped.
-Weight is not no longer compedative with modern biners
-Irregular shape makes them useless in carbiner brakes and it won't fit clipstick

I would not recomend them to anyone but top ropers or those who only climb well below their level. But if you can get them for really cheap, they might be worthwhile.

Great biner for some people but i dont really like them because of there wierd shape, they stick out compared to my other biners and sort of get in the way. Sort of annoying while trad climbing and trying to pull out a stopper and get the wrong one because of the size of the biner, but they are light and comfortable, maybe i should have bought more of them.