Okay so some further feedback.
The grandstand placement is way harder than it should be. Particularly for an oval, it is very hard to get the curvature right. It's also hard to align the grandstands well without snapping, and with snapping it often puts the grandstand poking out onto the ground.
Really, it should be a very simple command: one chooses a grandstand type and then clicks the boundary where it is desired and it is placed there with the curvature automatically done, you can then change how many gates and the curvature around the boundary is automatically done so you can do a whole bowl if you want in basically two clicks.
I understand that manual placement is nice, and by all means keep it in particular for little things like sheds and country pavilions, but just to get a basic grandstand setup around an oval took me 45 minutes, until I accidentally deleted a piece and couldn't undo the move and I gave up. A copy paste would also be very handy if you've just made a stand with the tiers, roof, colour etc just how you want and want to have some consistency throughout the stand.
Also for the roads I'm not sure why there is a concrete border that fills the whole square. Why couldn't that just be transparent leaving solely the road?
Quite a negative tone I'm sorry. Of course this is an early beta and the purpose is feedback so I'm sure it will improve.