I went to Momo-Yama for dinner last week for the first time. We ordered the beef tataki, agedashi tofu and the sushi & sashimi combo. The portions were a lot larger than I expected. The ponzu sauce for the beef tataki was flavourful and delicious. My only complaint is that the beef was still a little on the frozen-side. The agedashi tofu was however a complete miss. Instead of using the soft silky tofu they used a stiffer tofu which totally took away from the dish and the batter was a little on the stiff side. The large portion size (8 pieces) certainly didn't make up for it. The agedashi tofu in no way compares to the one at Wa's. And the sauce for the tofu was a little sweetened (i.e. it is non-traditional).
The sushi and sashimi were ok. The fish were fresh and the pieces of fish were very large (i.e. good value). However, there was no sense of authenticity in the preparation. The miso soup also did not taste very authentic.
I would recommend this place to a person who is looking for good value (i.e. large pieces of sushi and sashimi for a good price) but definitely not to a person who truly appreciates the presentation and art of japanese cuisine.