G Residence and Leon were brilliant hosts.
The apartment I got was very clean, finished to a high standard. Everything was described on Airbnb apart from the view, but for me, that didn't subtract away from the experience. There's a starbucks so close to the place that you'll struggle not to have a coffee problem after your stay, which is right next to a small grocery store and a hairdressers.
The concierge was great they set up food delivery apps for me and also organized a PCR test.
The only real drawback was the lack of transport links and that's obviously outside the hosts' control, but with that said it's a very big deal if you don't drive. Aside from this, I ran into problems with the internet and as other reviewers have said this place isn't fully complete yet - G tower is totally ready but the rest of the complex is still being built, which isn't a con but it's good to arrive there not expecting a fully functional complex.
Despite all of this, if I was offered the price I paid in July again and I was for whatever reason stuck in Istanbul I would definitely come back.
Quite honestly, I considered outright buying an apartment in the complex but Istanbul just wasn't a fit for me, the apartment is that good - just make sure you have the right expectations going in.