I bought this as an upgrade to my old pedals Shimano PD-M530, as me this was much too heavy. Would also works the other yet. Since I have a complete XT equipment on my mountain bike, I've decided to use the associated pedals XTR pedals had enough advantages to justify twice the price.
These pedals have the 310 gram and are thus for me perfectly fine. There is also significantly lighter pedals as the crankbrothers eggbeater or X-Pedo pedals titanium, but in these there are any problems or they cost a multiple of the XT pedals.
So far, I'm so driven about 500 kilometers, they work perfectly, so far I've never had the problem that I am slipped out accidentally, as it happened to me with the PD-M530 a few times. The setting for the release force works very well, so the pedals are both Klickpedal beginners as well as professionals.
I highly recommend these pedals and the price they are in my opinion easily worth