Have had good success with some produce in containers, and so-so success with tomatoes. I think using varieties that are adapted to containers is useful. Although patio varieties may not have the superdooper taste of heirlooms, any home grown tomato in season is gonna be hands above anything you buy in a store.

In my experience, consistent and even moisture without overwatering is important, as is staying right on top of fertilization requirements with balanced fertilizer customized for tomatoes. Too much or too little can be equally problematic within the contained environment of a pot. Attention to minerals, especially magnesium, is very important. This relates, in part to watering since some minerals required by tomatoes leach more readily than others. Tomatoes are such heavy feeders, and the balance of minerals and the effects of ph and watering on the balance gets real important when tomatoes are grown in containers.