I went to the 48th St location in Manhattan a lot when I lived in the city. It was pretty great - a few different storefronts on the block, basically different departments for everything. Pro audio, guitars, percussion, orchestral instruments, etc. A music bazaar of sorts. That was over 20 years ago. I think they closed down some of that over the years and contracted into a smaller space.
I haven't been to a ton of other locations, but all the other ones I visited were basically like Guitar Center. Nothing near me up where I live now. They did still have decent online prices for some used gear, so it was a bummer to see that go away. I guess if another company is going to slap the Sam Ash name on an online retail operation and sell off their stock of gear, more power to them, and maybe there's a lane for it between the carelessness of Guitar Center/Musician's Friend and the overbearing solicitude of Sweetwater. But we also have Zzounds and American Music Supply and countless shops and individuals on Ebay and Reverb, so, eh.