I have had the AT102ED since late June '19 with 46 sessions.
First, this is an absolute gem of a telescope for me. My ETX90RA was a workhorse for 20 years and the AT is a much better scope in many ways.
I have very simple eyepieces:
32mm Meade Plossl - 22x 2.34 fov
26mm Meade Plossl- 27x 1.9 fov
20mm Astrotech Plossl - 36x 1.46 fov
16mm Meade Plossl - 44x 1.17 fov
12mm unbranded Astronomics demo on sale - 59x, 1.01 fov
9mm Astrotech Plossl - 79x .65 fov
6 mm Astrotech Plossl - 118x .44 fov
4mm Astrotech Plossl - 178x .29 fov
These inexpensive eyepieces work quite well for me. I have never viewed thru a more expensive eyepiece so cannot make comparison judgements but I will tell you this....the Astrotech Plossl, particularly the 20mm and 9mm are my workhorses. The views are crisp and in focus to the edge of FOV.
I purchased the 12mm unbranded about a month ago (absolute fov is about 60 degrees if I recall) and enjoy the midrange magnification between the 16 and 9mm. It does provide a wider FOV but it is not as sharp at edges as the Plossls.
The 6mm is used to separate tight doubles and works pretty well.
The 4mm is used sparingly...difficult to achieve prime focus unless the conditions are ideal....plus the narrow .29 fov gives me very little time to view and object before nudging it and then awaiting my Twilight 1 mount to calm down.
BTW - the 20mm and 9mm Plossls were about $22 each and the 4 and 6mm were $10 each. The 12mm was about the same.
As you can see I have not invested much in the eyepieces. At some point when the COVID 19 settles down I hope to view thru "better" eyepieces before I invest in a more costly glass.
For now, I am very satisfied and eagerly anticipate the next clear night.