Hanamasa is a All-you-can-eat Restaurant Chain in Indonesia, with japanese Gril and Barbecue. It is quite popular and there are many outlets in Jakarta. I went to Hanamasa on Jl Mahakam (near Gran Mahakam Hotel) and I tried the food.
I was not disappointed by the food: there is a fair choice of meat, vegetables and other condiments. You can either boil it or gril it (Shabu Shabu or Yakiniku). The crowd there is mostly indonesian and the different restaurants are pretty full on the week ends. I also found the place very clean with good service. The best part in my opinion is the price: it's only 100 000 Rp / 120 000 Rp to get a buffet menu. This one of the lowest price compared to the more than decent quality of the food. i would then recommend it as a good cheap alternative to fancy Korean BBQ.
Try the desserts also, they are worth it. The manioc with coconut sauce is a must have.
There are Hanamasa restaurants in Jakarta, Bogor, Depok, Tangerang, Bekasi, Bandung, Surabaya and Bali so far. I am not sure whether or not this is a franchise of a Japanese restaurants chain. Let me know if you have the information !
Hanamasa Mahakam
Jl. Mahakam I/166, Keb. Baru
Jakarta Selatan
Phone: 021 720 2366
Hanamasa: Website
The list of the different Hanamasa Restaurants locations is here.