The Stonewell in Conshohocken??
Pretty good. Stonewell has been there for many years and has been consistently good throughout. Its a BYO with a modest sized menu...Korean / Japanese..and Sushi bar. Bibim Bap, Bokkum's that sort..they will vary degree of spice to your liking. I actually think their sushi is quite good. Better than most in the area.
A friendly staff, dated decor, minimal (almost nil) crowd most days make it an easygoing stop. (dont let the no crowd scare you..they do a more than ample lunch and take out crowd...)