Word of mouth is priceless.
I think it's interesting, and I wonder if it's a generational thing or if that'd be overgeneralizing. Or, you're so flush it doesn't matter to you. I'm Gen-X; while I can't speak for the rest of my generation, I was taught that, when it comes to entrusting me money with an institution, the most important things were the financial factors: fees, interest, loan services and terms, investment services.
Did you do any comparison shopping based on financial considerations? Or is ease of use the most important factor? Do you feel that all banks are basically the same?