I owned an AT 60. I used it for NV deep sky observing at prime focus and it worked fine.
However. There is always a however…
The optical quality in my sample was mediocre at best, according to my star testing. It was fine for low power daytime and NV observing. It ain’t no Takahashi.
HERE is a review. The optical quality of my sample was better, but not by much.
The scope is heavy for its size and was more difficult or cumbersome riding on my lightweight alt/az mount than was my 102mm F5 achromat.
I sold mine in a few months, as the 102mm F5 achromat (which can be reduced to F3.5) was better for NV deep sky observing.
You already bought the AT 60 so it might work for you. If it does not, consider the 80mm F5 achromats. Add a 2” GSO focuser. They are lightweight, will work for NV and are fine for daytime use at the low powers used for daytime observing.
I must have had some good luck. The AT60ED I got was when they first were released, and it's excellent on the star test. In fact, it bested two TV60s (which were good but not great in my opinion) and a Tak FS60-C (the old version). That being said, I'm sure it has a bit more variation in samples than the other ones. And it wasn't just star tests. I saw improvements in planetary performance also.
But I think there is always that case of sample variation that is something we should always consider when choosing telescopes. In my estimation, that is what we are generally buying when we go for a high end scope vs a value scope. The Astrotech telescopes seem to provide pretty good value, but could have some variation between samples. It seems to me that they have less variation than some of the other mid-level scopes (William Optics historically for example).
Either way, these small 60mm scopes have some value, but only for specific situations in my opinion. For me, the goal was a scope I could bring anywhere and was pretty compact. I use my 60mm on a Dwarfstar mount and a camera tripod. This provides an extreme portable setup for situations where that is needed. I like to use it for terrestrial and solar observing.
However, I personally find these scopes to be too small for general observing as they run out of light too quickly. I picked up a Tak 76 DCU (but any 80mm class will do) as a wide field instrument. It's a really good telescope (best optics in my opinion of all my telescopes). The difference between the 76mm and the 60mm is quite significant and to me, unless you need extreme portability (like the OP is talking), I see no reason to use a 60mm over the 80mm class. Unless someone has physical issues that requires a super light and compact grab and go. Though the Tak 76DCU is pretty close in all respects.
Actually, because the Tak 76 DCU splits in two, it could be considered as an option for the OP's situation. The mount could be the same for a 60mm class and the 76 DCU.