Decent prices, fast delivery and good contact from Tischer. I ordered a part that wasn't for my Z4M, and they called ahead to let me know.
One thing I wish they could do is do weight appropriate shipping prices. I ordered items that could easily have been shipped for much less, but the handling was just about as much as the item. (but then, you factor how much gas you waste driving to and from a BMW dealership to pick up a part, it probably equals the handling fee) That said, I still look at Tischer first because their prices are usually the lowest around.
Coupe: RPI Scoop, OE Strut, CDV, Volk RE30, SS Brake Lines, Stromung Exhaust