DelPark has more of a club-like atmosphere: dark carved wood, dark colors, chandelier, low lighting, and all it it centered around horse racing. There are slots and table games. Slots are in a compact arrangement and easy to find what you're looking for. Table games are relatively new, and the dealers are professional. The dinner promo for players draws a small crowd of daytime slot players, and you can normally find room at the tables. Nice, local alternative to AC and Dover.
We stayed later for dinner and it was surprisingly terrific. Parking was no big deal to us; you walk through a small landscaped paek just prior to casino, so not just concrete.
Side note: we really lile the golf course and restaurant on the property. It's a complete day out.