Not sure what all the hype is with this place. You can't order your burger any other way than medium well. This said our burgers were solidly well done. If you are paying $7-8 for a burger, the quality should be such that it's safe to order an medium rare burger and it should be available that way if you want it that way.
My Mushroom and Swiss was poorly seasoned, if at all. It was bland. I'm not even sure there was salt and pepper seasoning the burger or the mushrooms. I'd say the burgers are over priced for what they are, essentially assembly line burgers cooked on a mechanism similar to Burger King. Culver's would be both better quality and a better value.
This said Culver's doesn't serve beer. This place literally has dozens of varieties of beer on tap. I ordered the Milk Shake Stout on a nitro tap. It was flat - a nitro tap beer should arrive with a distinctive vanishing, yet creamy head.
The tap pours are small, medium and large. Small pour is 7 oz. - I guess with so many taps, offering a little size is helpful? The server was very nice and offered to let us sample beers be for we committed.
Bottom line - it's a chain, nothing special... Not my thing. If you are looking for fast food style burgers with an expansive beer list, it might be your thing.