I am thinking about "learning" on my own house before I offer the landscape lighting to my landscape customers. I need something to show my customers for a presentation. Having said this could everyone please tell me their opinions of Vista products. What is your (or anyone else that cares to comment) impression of Vista MT Series transformers. I am going to use Vista 2250's for uplight some trees and columns. What are the ups and downs of their lights? Thanks ahead of time. This forum is better than any college education!