Finally got around to giving Fukuburger a try, but have to say I was pretty disappointed - just not sure it's executed very well. Service didn't help either.
We got a Kinoko and Chicken Katsu burger as well as garlic fries and jazz fries. My chicken katsu was good flavor-wise, but the chicken had so much breading and was really tough. I tried a bit of the Kinoko burger and I think the flavor and concept are good, but the sauce had already soaked through the bottom of the bun when we got it. I didn't like the jazz fries - just not a lot of flavor. Definitely preferred the garlic fries as the togarashi makes for a nice kick.
The service didn't help. The girl taking our order kept talking to one of the other staff even while she was taking our order. She made me repeat my whole order three times and she still got it wrong. Just incredibly rude. She acted like getting a refill on my soda was such a big deal, too. Definitely did not make me feel like my business is appreciated.