On the whole I like Dragon Shermans. I'm sure other will disagree but there are two things though I'm not crazy about them.
Many of the kits, like the Firefly, have only individual track links. I really don't think these are necessary on American tanks as they don't have the same sag as German and Russian tanks. The two DML tanks I've made with individual links, a Pz III and Valentine, the tracks weren't two hard as you only had to glue one link to another. On American tracks though you have to keep two links together, with a zig or some other method, while attaching two end connectors. That's more than twice the work as the other two tanks. What I wound up doing on my Operation Cobra Sherman was to use some perfectly serviceable Tamiya "rubber band" tracks from a spare kit.
The other thing is DML's habit of using sprues from different kits and adding new sprues to make another model of Sherman. This means you spend a great deal of time taking one part from one sprue, a couple parts from another, and more parts from another. It's a bit more frustrating and less enjoyable than it could be.
Other than those two gripes I have a number of DML Shermans and I look forward to making them. They are either the only game in town for some versions, or the best kit available, or the best value available.