I have the Autel Maxisys Elite package. The J2534 VCI that is included has not presented any issues so far. With current subscription, you can update the vehicle database files, you can program and code BMW and Benz directly from the tablet, and you will want to backup the software before your subscription expires. It is expensive to renew.
When it expires, you can’t update the vehicle database or do the coding and programming from the tablet anymore. You can still use the tool after expiration and any rumors you hear that Autel locks you out of the tool are false.
The MK908P has Level 5 vehicle security access whereas the MaxiSys Elite has a Level 2 access, whatever that means. The Elite can do things the Autel Scanner can’t and vice-versa. Autel made it a point to not give any one tool full capabilities. You would need to own both tools in order to get the most out of Autel.
From a business standpoint, this is great!
From a CONsumer perspective, this means spending more $$$, but having a nice set of technical tools to work with.