I ate there today and order the gyudon with curry and egg, along with edamame. It is very affordable at 12 dollar, and most importantly, it taste fabulous.
The gyu don, beef don, remind of yoshinoya i had in japan. Very thinly sliced beef, with what I believe it is cook in its own broth. The combination of the broth and the rice is beautiful, it is very savoury and packed with umami. The additional raw egg simply add another dimension of flavour to it.
The curry is also very delicious, i won't consider it to be spicy though. Its a very thick sauce that goes great with rice, u get the sweetness from the carrot, the savoury from the onion and the thick texture from the potato. Its quite a traditional taste but on a slightly sweet side. I suggest the curry on the side though, both the beef don and the curry have a strong and distinct taste, so by doing so, you can enjoy it as two dish on its own.
Only complaint is the Edamame(basically is bean with salt,) was slightly under salt, but its a subjective thing i guess.
And price, almost everything is under 10 dollar, tax included, tips no expected. I mean, if you are broke, its a pretty solid choice. If you are not, still go try it, happy dining~