I have the WM Alpinelite - a roomier version of that bag. I get claustro. I think it has been a good investment. I feel that the temp rating is fair if not conservative for this bag and me. I have not seen anything that I would consider as a replacement for this bag. They all seem to be in a similar price range and if you are after a well made, lightweight bag then I don't think you would regret the purchase. WM bags consistently get good reviews. Go for it.