I want to like this editor but I feel the rough edges really let it down. The tileset editor mode is what I like most about it, but using this mode makes the editor lag a lot (I'm on Windows 11 btw), so I can't edit tiles and add them on the go. The editor itself is a little slower than I'm used to, with the pixel placement trailing behind my strokes.
The tiled mode's window can't be enlarged and the pixels don't wrap around the canvas, so I have to squint to check on what I'm doing. I'm better off just eyeballing the regular canvas at that point.
I've noticed a lot of planned features also haven't been followed up on so I'm not sure if this program has been abandoned or what.