I have mixed feeling about Sapell's. It certainly isn't the worst grocery store I have frequented (Sapell's reminds me of the grocery store closest to my grandparents' house in Anchorage: http://www.yelp.com/biz/carrs-quality-centers-anchorage) but it isn't exactly a "nice" grocery store, either.
I like that Sapell's is a local independent grocer and it's nice to have something other than Constantino's around. The selection is okay and staff is friendly. I also like that Sapell's has a shuttle for customers who buy more than $50 of groceries, but pricing isn't always the most accurate or obvious. (Today I realized after leaving that I paid more than I expected for a loaf of bread.)
It is great to have Sapell's here, but I wish there were something a little better nearby. W 117th tends to have some interesting characters and Sapell's seems to be where they shop. A Trader Joe's would be perfect but I am extremely curious about the Lucky's that is supposedly going to be built down the street.