Piggy's is definitely my favourite restaurant of all time for KBBQ. I'm very picky when it comes to Korean food but I honestly have to say that the KBBQ at Piggy's is amazing. It is on the pricier side (compared to some other KBBQ places like Chako's) but it's definitely worth the money. Your order also comes with a variety of side dishes. On the whole, the side dishes are average - not bad but not exceptional either. Piggy's offers a lot of items other than KBBQ such as Bosam, Pork Cutlet and Pork Bone Soup. One tip: don't get the Cold Noodles; they were awful. I've also tried the Pork Cutlet and loved it.
The service is great but there is usually a long wait to get seated for dinner (anywhere from 10-45min). I recommend avoiding the dinner rush that starts around 6-7pm and coming in for a late lunch/early dinner if you want a table right away. The booths give you quite a bit of privacy but the loud atmosphere isn't ideal if you want to carry on long conversations with friends.
Overall, if you're looking to try some delicious authentic KBBQ, Piggy's is the way to go!