Dave's is the closest supermarket to my place that has joined the 21st century (Marc's... wtf?) It is also clean and has a decent selection. Overall, it is an pretty average grocery store.
The biggest problem with Dave's is that basically everything is overpriced. Shopping here seems to add 10% on top of what I would expect to pay for my groceries, which isn't ok with me. The produce in particular is a bit out of control. I'm not paying 5x more than I'm used to for peppers and limes in particular. Also, if you come here during a busy time, be prepared to stand in line for the rest of your life.
If this place wasn't close, I wouldn't go here. It reminds me of Safeway, which I never went to when I lived in Denver for the same reasons.