I love it. If it looks flattering on you then get it! The M&S is fine but a very safe option. If it helps, I have a top from OB that I got about 3 years ago - it is quirky and bold but every time I wear it people compliment it.
I can dress conservatively in M&S stuff, but I feel most myself and most fabulous when I wear stuff that a lot of other people would say is too much or too weird.