I always try to put myself in the shoes of a potential buyer. Will you buy it if you were a buyer? Why would you buy it? Bestreviews, crazyreviews, specialreviews, and so on, but a number before "reviews"? Be realistic, don't try to convince yourself that's it's a good domain to invest because someone else bought domains with a number before "reviews". My PO, I wouldn't handreg it and I wouldn't renew it.