I've been here twice now, once for lunch and once for dinner. Dinner was definitely a lot busier, but there was no difference in service; both times it was attentive and polite. This was my first time trying Korean BBQ, and I had no idea what to expect. The food was really delicious, though, and the concept was intriguing. It definitely felt more fun cooking the food ourselves over the grill than if we had just had it delivered to our tables fully-cooked.
The menu/pricing was a little confusing at first: you can order one meat entree for a set price or pay a couple dollars more for all-you-can-eat. If one person at the table chooses all-you-can-eat, everyone has to get it. Lunch hovers around $15 and for an all-you-can-eat dinner, it's between $20-25 depending on if you want the pricier meats. For parties of 4 or more, there's an automatic 18% gratuity added.
Both times I went, everyone in my party had a really great time and were impressed by both the service and the flavorful food. I loved how nicely Doh was decorated, too; it's definitely a spot I'll be returning to!