I bought my Tech 2 from obd2tool.com and it works great. Cannot really compare software with a Tech2 as that is comparing hardware to a program. That being said, there is a software side of things that work alongside the Tech2 which is the TIS2000 software. Getting that working is a bit of a project in and of itself as the software is old and seems to work best on Windows XP. The TIS2000software is really not needed to use the Tech2 though – that is needed if you want to update the firmware in the various modules in your vehicle like the ECU, BCM, DDM, etc.
Simply put though. There is no other tool that can do everything on your H2 that the Tech2 can do. It is the only tool with things that are very specific like calibrating the rear air suspension module. Other tools can be very powerful but that are mostly just have features that are common to many vehicles and will not have things that are specific to just one or two vehicles.
cannot speak for any on Aliexpress. I’ve seen both good and bad reviews on the ones from there. Also the link you gave just takes me to the Aliexpress home page. Regardless it would not matter as again, I have no way of knowing if one from some seller on there will be a good one or not.
It is also worth spending the extra to get the case which does cost a good bit more. These come with a lot of different adapters and parts and the case makes it very nice and easy to keep it all together.
This is the kit that I ordered. It also includes the Candi module which is needed for many newer model GM vehicles.
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