I can't wait to see how great ARM macs will be.
However I think pretty much every single person here can agree on one very true point which has repeated itself with Apple products over many many years even going back to well into Steve Jobs time.
Expect any new Apple product, to get VASTLY better by the time the 2nd and 3rd models come out.
1st model (generally always issues)
2nd model fixes most of these problems, as they HAD to ship the 1st one and could not fix everything before launch so the 2nd one has all the things they really wanted to do with the 1st one.
3rd model, they'd had time to have a rethink and look at the good and bad points, and give it the love and polish to really make is a good well rounded product.