I have an older 9×9 Oware mid (5years plus – I got it secondhand in mint condition).
I also own/have owned several MLD shelters.
The Oware construction is fine and solid.
Though expect some slightly different construction techniques to MLD.
Zipper is good. Mine was the old version with only one slider, but it is fitted in a such a way that adding a new/extra slider from the top end is quick and simple. I did feel the need to add a couple more small velcro pieces to supplement the 3 used for securing the quite wide zip flap.
If I remember correctly, my 9x9x weighs around 700g-750g with added extra velcro, perimeter linelocs and mid panel lifters. Sorry to be vague! Not weighed it for years and no idea what the stated weight is to compare. It's light enough for me for the massive space it gives.