Finding tomato varieties that grow well in your area is very important for success. With so many from which to choose, when you find one that does very well, it's worth growing every season and for me, it's Red Alert.
The earliness and taste of this variety are second to none - at least in my garden - and I would recommend it to everyone to try.
As a cherry and bush variety it is easy to move under cover in the spring if temperatures become too cold or weather too wet.
It's only downside is that it can become a bit "leggy" and needs plenty of light. It performs best in a large container rather than a hanging basket and as a general rule, will produce an excellent harvest in a large pot or container. Grow bags are OK too, but it's best to keep the low growing branches off the ground.