I was going to attend tonight's gameday, but then stuff came up. Oh well.
Judging by the feedback and demo from this map's gameday session, it seems this map is actually pretty good (which is certainly more than can be said about Sally Valley). I liked how the rounds were short, 'cos I feel that that's the whole point of Arena mode.
As far as I'm aware, there weren't any major complaints (besides the fact that it's Arena and is therefore the spawn of Satan and the cause of all evil in the world), but there were a few niggles here and there which shouldn't be too hard to deal with.
And regarding that one comment about the map not having anything special about it: I'm not prepared to waste my great ideas on not-very-great maps (which is partly why I named it Donald). But if I do get far enough with this map (to Beta stage, I dare say..!), I've got a few ideas in store for it...
Anyway, any extra feedback from the gameday (or not from the gameday, whatevs) is very welcome!