Thank you for the amazing feedback. I pretty much agree with all your remarks.
Longer runs (and more variety across runs) is indeed something I'm planning to work on.
Some kind of endless mode might be a nice addition. For example: after successfully completing a 'regular run', you could store/save your build and use it in a separate 'endless mode'. In general, I think meta-progression is quite underdeveloped at the moment, and I'm experimenting with a few different ideas...
Regarding being able to get more information on tiles, effects, etc.: personally, I like it when games don't explain everything and let you figure out some of the mechanics by yourself. While I'm kinda under-explaining on purpose, I need to strike a better balance otherwise the game might feel needlessly confusing or obscure. So, I totally get your point. Food for thoughts.
Next: deck sorting is now on my ToDo list ;)
Finally, I'm working on a new tile upgrade called 'quick play' which significantly increases cooldown but lets you add the tile to the attack queue without triggering a turn.
Thanks again!