As you are pg, then get it. Its lovely, and looks like you may get some wear out of it aftewards too.
I had a pair of M&P trousers when pg with DS1 5 years ago. I wore them pretty much every day, and they were still going strong with my last pg too. So think their maternity clothes are pretty good. Can't say I think the same about the baby equipment side of their business though IME.
All the best with the pg. When are you due BTW?