After reading all the negative reviews on this particular restaurant I had my doubts about going to Taisho. However, as my son was turning six we decided to go there as he would be enamoured by the "conveyor-belt" gimmick. The warning bells went off when I called to make a reservation and they informed me of the mandatory 10% service charge for large groups (we had nine). I immediately informed them that I would not pay it as I feel fully justified in paying a tip if, and only if, the service warrants. Thankfully, they backed off.
From then on the event was positive. The decor is open, clean and inviting. The AYCE was sufficient. Mind you for the more exotic dishes they charge extra but if all you care about is the rolls, tempura, sashimi, etc., then there is more than enough. Note: in the past, I have not received everything I ordered for some unknown reason. I paid particular attention to everything that I ordered this time out and am pleased to report that everything came in a timely fashion.
As for service, yes the servers could add some personality and pizazz to their job (placing dishes on our table and continuing on without breaking stride is a skill). On a positive note, for our birthday boy we asked for some mango ice cream with a lit candle to be placed on the conveyor belt for him to "discover", and they were quite happy to comply. It was even comped.
Don't misunderstand me; this is not a classy joint. But it is a great place to take a young family (we have three boys and they didn't flinch). As for the tip: we did... more than the 10% they were originally asking.