I would definitely show up and if anything make the appointment or try to drop off what ever you need fixed and pick up later.
Yeah. They always have no shows. But do a bit of research before you go in. I took my laptop in to have storage expanded. They told me that an NVMe M.2 would not be supported. I found out that it was. So, though they are very capable, mistakes can be made.
Absolutely
That's what I did last year when I needed some work done.
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