Personally, I never liked the A-1's ergonomics at all. I have owned a couple of A-1s on different occassions, and I always sold them. I just think that the body is pretty quirky and non-intuitive to use. And the shutter lube issue is also the achilles heel. I think any number of Canon FD-mount bodies are superior to actually use. Certainly, at the high end, the F-1n and the T90 are more well thought-out in terms of ergonomics. And at the lower mid range, I also would rather use an FTbn or TX, or when looking for automation, a T70.
Compared to, say, the Minolta XD-11, which was the other multi-mode automatic SLR from the same era, ease of use is no contest in favor of the Minolta.