We went on a Sunday night in early June. The place was less than half full. There was a three course menu very fairly priced at $33. Some nightly specials were offered, some with an add on fee to the $33 (such as $6 additional for the seasonal salmon). For the quality and selection, this price was very good. In addition, on Sunday night, bottles of wine are half price. On price alone, this place would be 5 stars on Sunday night. Unfortunately, the food was just average to good. Note that the rating system on tripadvisor goes from average (3 stars) to very good (4 stars). While this place isn't exactly "average," it isn't "very good." Why not very good? They were out of the first bottle of wine we asked for and recommended another. There were four of us so the chances we would get a second bottle of wine were pretty good. When we ordered a second bottle of the recommend wine....no luck....they were out of that too. On this alone, I could not give a restaurant four stars.
As for the food.....the portions are large. The food ranges from OK to good to very good. The caprese flat bread is huge and is a meal, not a starter. The beet salad is OK, nothing special. The mussels were good. The pasta was overcooked and nothing special. Both the trout and the salmon were good but not great. As for desserts, the lemon flan was delicious and the lemon tart was OK.
Trellis is in a hotel. The atmosphere is OK but nothing special. You feel like you are in the lobby of a hotel, very institutional. There is outdoor seating which might be better but we did not try it so I cannot really say.
The place seemed to have much more potential than it showed us tonight. We might go back and try it again. I wouldn't recommend it to friends until I tried it again.
BTW....if you are reading Trellis.....I strongly recommend that you keep your wines in stock or update your wine list. Really.