In reply to Andrew95:
I've got the mountain pro 40, basically the same, and I like it a lot. It's quite old fashioned with the lid design but I like it and used it a lot for various things - climbing, ice climbing, Glastonbury... you might find the 30 is a bit on the small side btw. I've never seen one in the flesh, hard to know.
I'd have a glance at the Verglas as well. It's a bit more technical. I have the verglas 30. Which is definitely on the small side, feels more like a 25l.