I hope this helps!  My review generally aligns to what the playtesters from Tennis Warehouse say in their playtest video.  So my order just arrived and I agree with the ff observations:

I am typically a size US 8W with medium width but my left is slightly bigger. I've been wearing a workout shoes during training and light doubles but noticed my feet gets fatigued and figured i need more cushion. I then bought Nike Vapor Lite 3, but turns out that it's too narrow. I'll be selling the Lite soon.

Cons: 

* I am typically a size US 8 with medium width, but turns out my left foot is slightly bigger so it feels a bit too snug on my left. I would say it is true to size, but not for everyone lol. My next purchase will be in 8.5 USW.
* I dont feel locked in (it feels like I can remove my feet even if the laces are tied, i feel like i have to retie them after every game) and because the footbed are VERY plush, the upper is also cushioned, and finally, adding the fact that you also wear socks, they all contribute to the feeling of less locked in. 
* Traction is good per my initial wear, but i have not used it on the court as im thinking of returning it because of the reasons above. 
* I also agree about the heel sounding a bit slappy as if you're wearing a wet Crocs or rubber slippers? It does not sound great but at least it's not very loud like children's shoes. It could be the cushion decompressing and then filling with air? Im not sure. I guess when you're on the court, it wont matter and you only notice it when you wear it in the library, cinemas, or a quiet store. I wouldnt be wearing a tennis shoes for my errands anyway so I guess this specific issue is something I can tolerate. 
* I feel like it looks too bulky and i guess i prefer a less cushioned / thinner upper if that means reduced weight and sleeker look. It's not like the shoes are too heavy, I came from a 270g workout shoes and this has a comfortable weight.  

Positives - the white/silver colorway looks nice and clean, it has a VERY comfortable footbed, my feet almost sinks into the shoes. The mesh also feels breathable. Overall it's a shoe you can wear for tennis as the playtesters said, for casual hitting or a light doubles but something i wont wear on a match with fast aggressive hitters. It's not something I feel confident to wear if I want to perform at my best. If it had costed me about 60-70 dollars USD, I would not be in thinking of returning it, and would use it as a backup, but since I got it at around 110 dollars, it's not worth the money and the tradeoffs for me unfortunately. Too bad, I really wanted to like it. There's also one or two review that I read online that the shoes were initially stiff or snug but relaxed well after some use. Im not sure Im willing to risk it this time like I did with the Nike Vapor Lite 3.

My Adidas Avacourt 3 tennis shoes initial review before I request to return them!