I'm quite conflicted about how I feel about Spoon and Fork Plus. I've been here twice both times on a Saturday for lunch within the span of less than a month.
The first time we went was my birthday barely making it for lunch entering the restaurant at 2:55 pm. Following that first visit to this AYCE restaurant I was prepared to give them four stars. The service was great, and extremely timely given their iPad ordering system. The food was served hot and at a good pace, in the order of the menu. Of course there was also the sushi and the sashimi, the freshest fish I've ever had an AYCE style restaurant. Their Thai mains were amazing as well, both of my friends and I were extremely satisfied with both the peanut chicken and the red beef curry. The only dishes we order that were not up to par were the shrimp sumei and the butter chicken (which tasted more like a chicken masala). The selection of rolls is also quite limited but given the extensive number of dishes available over all this should really be an issue unless you're specifically going to order rolls. Overall a really fantastic first impression of the place.
On the other hand my second visit two weeks later, we arrived earlier around 1:40 pm. The service this time wasn't anywhere as great as the last. Immediately after ordering, we were bombarded with dish after dish, starting with mains moving to selective appetizers then dim sum, more appetizers and finally ending with sushi. The pace of dish service kept our table full forced us to scarf down the food which wasn't as hot or fresh as the last time around. We finished everything fairly quickly at the rushed pecs but felt extremely full due to the rate of consumption we were forced into just to fit the arriving dishes I the table. Pace of service seems to slow down around 2:30 pm for lunch so I would recommend coming in for a late lunch to get the most satisfying experience.