We went to both in March.

Simply (U S Market) was like something out of a post-apocalypse movie.

We finally gave up and went down to Super U. It was jammed but had very little in the way of US goods. So we ended up leaving without many things we needed. (Super U's selection isn't as good as Grande Marche's was. )

We have been spoiled by Simply, and stopped bringing things that we knew that we could get there. So we Spent time off and on over the next week getting the odds and ends we needed.

So, bottom line, we weren't happy with either one and will need to figure out "Plan C".