Some insurance companies steer more than others and some are just more blatant than others. Some insurance companies will set up DRP's with many shops in an area and some will use very few.
How does it all effect the customer? Is it beneficial to the customer to use a DRP? There again, it all depends on which insurance company you happen to be dealing with. Let's look at a collision claim from wreck to repair.
I have just been involved in an at fault collision. I called the police to the scene and their writing their report. I know it's my fault so I decide to go ahead and get the claim started so I can get my car fixed.
I call my agent or the 1-800 number on my insurance card and tell them what happened. They give me a claim number and now offer me the DRP.
For this example I'll opt out of the DRP because the shop I use isn't on the list. Now this can go one of three ways from here: I will either have to get an estimate from the shop and fax it off to the insurance company for approval, the insurance company will send out a rep to write the estimate, or the insurance company will send out an independent appraiser. In any case I'll be using the shop I chose.
What a lot of folks don't know is "this is just an estimate", it is not a final bill. The rep may cut a check on the spot to spend at the shop I decided on. The independent will send his estimate to the insurance company and an adjuster will do a desk review and he will cut the check. The shop's estimate will go through the same process as the independent adjuster's but will most likely be scrutinized a little more, payment will be issued to the me, the shop or me and the shop.