I usually look for ones that have reviews and find out what the people are saying, but I didn’t see any on this one.
I was hesitant to try it, especially since you don’t get a free try first, but I spent the dollar and I don’t regret it. It has basic graphics, but there’s no glitches and it’s got strategy. If you’re into tower defense games, this is a worthy one to add to your library.
Upgrading is different. The more of one plant you clump together, like a garden, the stronger it becomes. It takes a few tries (for me anyway) to get used to that but then it makes sense and it’s quite enjoyable.
If enough end up liking it, maybe the graphics will be improved. You should try it.