It's been a little over 1 year since I began playing ESO on XBOX One. Here are my most notable year 1 observations and opinions:
1 - Crashing, performance, and lag is getting worse with each DLC.
The most important observation, which has been experienced by a good deal of players on these forums. DLCs are fun, but when they hurt game performance it becomes a love/hate experience each release. Not all players would agree, but I've spoken to a good deal of players who would rather wait longer for DLCs if it means being able to play the game more successfully.
2 - Having to buy "Riding Skills" on new characters is a drudge.
I get it, ZOS. Most players hate the time it takes to increase their riding skills on a new player, so you're banking on them spending real money via crowns to upgrade their riding skills. However, the 20 hour gate for 1 skill upgrade and the inclusion of riding skills for purchase in the crown store is disrespectful to the player base. Aesthetic, non-gameplay affecting mounts and costumes which are included in the crown store are there to make you money and I'm happy for you that people buy them, but riding skills affect gameplay and are too close to the "pay-to-win" line.
3 - Sneaking/Hidden range detection doesn't make sense in Cyrodiil.
Crouching in a wide-open, sun-drenched field in Cyrodiil currently allows players to be "invisible" to each other from 7 meters away. Such game mechanics encourages ganking - which is an important strategy, not a mechanic that should allow an entire army to hide in plain sight, 20 meters away, in an open field, in broad daylight.
4 - Having "locked," class-specific skill lines minimizes diversity, makes balance difficult, and divides players.
Most of us have very similar, if not identical, builds because we are limited by the constraints of classes - which must be balanced by developers who get scrutinized for their ability or inability to balance classes, which causes a class-divide amongst players. Removing classes would allow the balancing focus to be where it should be, on specific skills and skill lines, not an entire class as a whole. Right now there are "class-defining" skills (see: Radiant Destruction or Cloak). Removing classes and allowing players to choose their own 3 skill lines frees ZOS from the constraints of balancing a whole class, and instead allows them to focus on balancing skills and skill lines, specifically. For example, if Radiant Destruction is a problem, ZOS can more easily "fix" it without burying an entire class.