Does anyone have any experience with parts from Amazon's KOOLMAN (aka Import Parts Depot)?

I think I am going to take a chance on their carrier part, because:

1) It's only $25 delivered. Since I will likely have to replace this on other doors, I would like to see if it will fit & hold up.

2) I see they have a lot of other BMW replacement parts, so I may choose to use them for other parts as well.

I appreciate the advice for OEM and normally that is what I like to buy. Hopefully I won't be saying 'you told me so' later...

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Tim in Indy
2014 xDrive35i