Been dealing with terrible gear-shifting issues for the last month. The "experts" at Allstate took one look and said I need a whole new transmission; a $2500 job. Took my car to Back to Basics for a second opinion at a friend's recommendation. Glad I did. They took their time to figure out the real problem. A day later my car was running better than ever with a new speed sensor and I was out of there for about $250, including diagnosis. Friendly staff who cares about quality. I would definitely go back to them, but something makes me think my car will be running smooth enough that I won't have to for a while.