I have a lot of respect for iFixit. They at least appear to have their heads screwed on right, and the tools I've bought from them do really seem to be good quality. My only recent "complex" task that needed their tools was adding a hybrid water cooler to a 1080ti GPU. Their stuff was great, and their customer service has been good too. (EDIT: I meant to say, the addition went well due to their tools, good quality st…
What does T-Mobile know about hardware repairability? They’re a carrier aren’t they? They don’t have anything to do with any hardware.
Fixing phones could be a reasonable side business for their phones, so it could work out as a win-win for them -- if you buy a fixable phone, they would probably be able to fix it for you it's broken.