I actually spent about ten minutes today at Merion after visiting a customer in nearby Radnor.
While my brief look was by no means comprehensive, honestly, things didn't look too bad, either aesthetically or in terms of the potential for lost balls on the high side of bunkers.
Again, I only saw a few holes, but didn't come away feeling that if I had time to take a detailed review my conclusion would necessarily be negative.
Merion is so cool even if you only have ten minutes. It has an intimacy few courses can match. Wish More courses could be built with that quality.