A bit of thread revival...
I know Thomas coded ADOM with PDCurses, so I plugged a GCU port for my Angband variant using PDCurses to try the Necklace of the Eye frontend on this RL. It's quite easy to plug a new RL in NotEye (even with no effort if you use the basic tileset), and the result is... interesting.
Tile mode: PWMAngband has some available tilesets (from 8x8 to 32x32, even 64x64 in the forthcoming version), so this mode is not really relevant
FPP mode: I like this... makes me feel I play Wolfenstein3D or DOOM (PWMAngband is a real-time RL by the way...) -- I bet DoomRL feels awesome in this mode
Isometric view: nice, but it has a few problems; the controls are bound to the view, so you need to get used pressing '3' to go east, '7' to go west and so on; and the southern/eastern walls are not 'transparent', so features/monsters/objects are hidden when located near S/E walls
Unfortunately, NotEye has a major problem that makes it unusable for me: the keypress system. Seems to me that it has been hardcoded to be usable only on QWERTY keyboards. I have to press 'a' for 'q', ctrl doesn't seem to do anything...
You feel excited. You die.