This makes my want to get one for one of my e53s. I was going to go with Dynavin, but for half the money this will work. One thing, it seems like it is a best practice make sure the unit has access to mobile broad band or wifi to work best. I really would prefer not to do that since I do not want to pay unlimited data on my phone or pay for a separate mobile hotspot charge. Has anyone been happy with the unit with it not having access to hotspot or wifi?

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2001 E53 X5 3.0 Auto. Silver Black Build date 10-17-2000 141kmiles

2004 E60 545i Sport 6MT. Black/Black Build Date 6-2004 102k miles