Now secondly and most important I must admit I found myself quite frustrated with the fact there's no numerical interface to input settings, only sliders which I must admit, while smart on snaps are still a pain to use. So I suggest numerical type-ins for XYZ position, XYZ rotation and animation rates.
This would ease up precisie alignment of objects and rotations a lot, and perhaps if the devs are feeling generous we could also have a shift pivot option. This would greatly help assembling circular arrays and creating nifty animations, however I don't know if this is feasible at the moment since it means embeding more data at the tiles XMLs.
This is my biggest pet peeve about the tile editor. There is no fine tuning of the XYZ position. Rotation can be adjusted in the options, but it only seems to work once. Even a "snap to" hot key would be nice to connect objects.
From my understanding, people are modifying the XML directly, but that seems a bit tedious when there is a perfectly wonderful tile editor implemented.