Placed around 20 days ago. And with 800km on the odometer.
Dimensions 225 45 17.
I have seen in practice everything they promise. Soft tire that absorbs many of the road shocks. I come from Bridgestone and I see a difference in favor of Dunlop in this. At low to medium speeds, I would dare to say 10/10 in this area.
After the first 500 km, I started pushing it ...turns.
What I have to get used to is the "bubble" feeling compared to before. That is, they filter the road very well (positive for me, but I need to get used to it).
A characteristic that was greatly enhanced when after 600 km I changed the atmosphere with nitrogen. Due to the low profile, the change is dramatic.
And let's get to the essence.
Both in dry and wet conditions, the tires have excellent performance. Excellent directional stability, even in slalom test conditions.
Positive that they reach operating temperature quickly.
At speeds up to 70 km, it is difficult to detect differences between the tires on the market, so we appreciate the positive extra filtering.
From 70 to 120 is the range where you feel the air cushion between the tire and the road (it has no impact on performance. I'm talking about sensation).
At speeds from 130-200 km, they "stick" down, assisted by the aerodynamics of the car. In open-fast curves, they are in their element, regardless of the quality of the pavement.
In summary, an excellent purchase. It's a bit unfamiliar to what I mentioned before and I have to get used to it. Don't expect anything bad. Just different from my previous experience.
I consider it an excellent purchase, which I do not regret (based on the data so far).
I highly recommend them for "calm power" driving, but not for drivers who enjoy twisty roads and fast helical routes, where the characteristic of isolation-filtering of the road is not useful.
We still have to see how they evolve over time, in terms of performance and wear.
There will be edits.

The Sport Maxx RT 2 were installed in September 2017 on an Astra H 1.6T, replacing the very good Sport Maxx RT and have done about 10,000 km.
I would say they are just as good if not better than the RT. They definitely heat up and perform faster. On dry roads, they are truly impeccable, with very good grip and amazing braking. What surprised me was their performance on wet roads, where they offer great safety for a summer tire. They have relatively low levels of noise.
On the other hand, being a soft tire, in turns at high speeds, it makes the car lean quite a bit, which is something you have to get used to because it has high levels of grip as mentioned before.
So far, there is no noticeable spinning or wear on the tread.

I would recommend it if someone is interested in a sport tire with low levels of noise.

Review 2021: After almost four years, my opinion is that if you don't want it for turns, it is a very good tire. It performs well from the start, doesn't slip at the beginning, is excellent in aquaplaning and generally in the rain, and has exceptional braking. If it stayed parked for a long time due to lockdown, there are no issues.
However, as I mentioned for turns and abrupt weight shifts, it is simply tragic. You feel like you're driving on balloons. In terms of comfort, you feel every pothole you encounter.