Although this product is easy to develop with I was disappointed to find it requires a license per machine. As an independent developer this is unlike any other product I use. All the others I have ever purchased have been licensed per developer and they don't mind if I develop on two machines (as I do). This has led me to take two stars away from this otherwise excellent product. In addition it has led me not to recommend any Dart products even though I bought two licenses for this one.