Some TS is amazing, others crap. Choose vendors that have good TS. Time is money.
Lutron is a standout. Their written tech support bulletins are outstanding, and support on weekends is pretty good.
Sometimes a good distributor will make the difference.
This should be emphasized to the client, up front. It saves the customer money.
TB A+ Partner Believe nothing, no matter where you read it, or who said it, no matter if I have said it, unless it agrees with your own reason and your own common sense. -Buddha