I've talked to several people about Dish...no complaints. I haven't had any issues with Directv aside from their programming issues with their vendors. I've had Directv for quite awhile. Longer than you, without technical issues. Haven't called them for support at all. I get all mine from the forums, oddly enough. I've been thinking about switching to Dish since their last escapade. It's coming down to switching for the following: vendor disputes, pricing of packages, new equipment, trying something different, and last but not least BBCA HD.
As far as installation goes....I wasn't impressed with the guy they sent out. He had to come back twice.