Mohegan Sun Casino

Lot is sloped throughout - making it everything from level to impossible depending on where you park. Public Safety staff is top notch friendly and helpful. Casino is earthy toned which we like better then the bright colors elsewhere. The buffet is usually tops and there is a Chick-fil-A and a Pasta Vita. Nice river view from the lot.

July 2016
Just park anywhere in the top (RV Campers) carpark and set yourself up, if you are lucky you will have a magnificent view over the Thames River.
Site is all blacktop, slightly sloping but easy to level with just a couple of blocks.
Security will come by and register you.
Nice Casino, choice of eating spots from snack food to fine dining.
Shuttle to casino every 15 minutes over 24 hours

As others have said, the parking lot, although paved is very uneven - slopes towards the Thames River - you can park right along the guard rail and look down in to the river, but be prepared to be up in the air on one side of your rig if you do. We ended up in center of lot, straddling several sites to find a level enough spot for our rig. When you arrive, phone security and they'll come up to register you - go ahead and get set up while you wait (although for us they followed us up the hill). We stayed midweek in Sept and had lots of open space to choose from.
Shuttle bus to casino comes through every 15-20 minutes - lots of dining option in casino from coffee & donuts, to burger to buffet and then the $$$$ name restaurants. We ate at Margaritaville as they offer early bird $5 drink and appetizers from 3-6 pm.
Very large casino with lots of gaming areas. Still found them overpriced with $10 Black Jack mid-day.

Been here many times. Reviewers are right, lot is a large undulating paved lot on the hill a good half mile from the Casino entrance. There are some places where you can get level, though they are the first to go. Shuttle bus is convenient and we have always enjoyed all the casino personnel including the security guys who will check you in. Check in is good, for your protection, as they don't want permanent "campers" staying in the lot, nor do you.
Inside the casino, VP machines have so-so pay tables. Live poker is nice with fairly good activity. Restaurants are on the pricey side as Casinos go but fairly good quality. Comps are dreadful as they are at Foxwoods as well. You are competing with big city whales for their attention, and you will unlikely impress them with your play, unless of course you are a whale yourself.

We have stayed there numerous times over the past few years. It is a big paved parking lot that is not very level. You must checkin by calling the number on the signs and place the permit in your window. The staff is very nice. The shuttle service runs every 15-20 minutes and is reliable. It would be difficult to walk to the casino.
It is okay for dogs but there is not much grassy area around.
Wifi is available throughout the casino area. Food is good.