It is a fair question to ask and one I pondered prior to purchase of my first Aero 8.
For reference and to kick off the conversation: -
I just did 1,000 miles in the Aeromax, in Europe, without any issues at all.
When I met up with Aeroman, he was on the last leg of his European jaunt. I am not sure how many miles he did but it was probably at least 3,000. As far as I am aware, he did not have any problems.
Last year, to St. Tropez from the UK (and back), there were 5 Aero 8s in the group I drove with. We had one issue on the entire trip - mr_tony had a problem with his power steering (which if I recall correctly resolved itself?) on his S2. This trip was close to 2,000 miles (and the cars were a mix of S1, S2 and S3).
In my opinion, the Aero 8/Aeromax is very reliable; however, you do need to get past the initial 'shake-down' issues which may be present in a new-build Morgan. Once they are resolved, they seem to be relatively bullet proof (certainly no worse than many modern mainstream cars).
There are some people on the site who have done a lot of miles in their Aeros (Aeroman, Boshly and Shooter spring to mind). If I am not mistaken, Shooter drove his daily for 12+ months (and in all the weather the UK could throw at it).
As with many handmade items, there can be human error in the initial build; however, as said above, the break-in service is used to resolve a lot of these (if not all).
If I was to ask myself the question you posed to yourself - could I use the Aero 8 daily? My response would be no. While the reliability wouldn't be a concern (because as above, I believe they are reliable once you sort out any new-build issues), taking the shine off a special car would.
My Morgan is too special for me to want to hammer long distances in. I look at the condition of my current daily driver and even though I take good care of it, it shows the scars (rock chips, scratches, age) of many many motorway miles. I can accept that on something that has the appeal of 'white goods' but on my Morgan, I'd find it difficult to accept.
Just my 2-pence.
