So I got the tune loaded up on my 2019 SE and here are my thoughts;
Coming from a long list of tuned vehicles, the difference with the LMS tune is not "oh my god" different. However it is a significant boost in performance. When I first pulled out of my driveway, I was disappointed because it felt like stock. After about a half mile, it really woke up. Took a spin around the neighborhood along with a highway jaunt.
Around the city, the transmission is buttery smooth. No more clunking and jerking at all! Low throttle (normal driving) feels like stock. Mid throttle gives you a little more "push" in the seat. Gunning it at 35mph actually introduced a little torque steer, much to my surprise. It seems the tune has massive power gains in the midrange, which is where you have your passing power.
On my brief WOT run on the highway, the Edge did not feel like it was struggling to get up to speed like it was before. It reached 80mph pretty effortlessly. Passing power over 55mph has not been tested, as the highway drive I took was only a mile long.
Using Sport Mode was what made the most difference. Running in this mode made the Edge feel like my old Focus ST power-wise when it was stock. So that to me, is pretty impressive considering the 4000+ lb weight of the Edge.
Throttle sensitivity doesn't seem to be changed too much. It is a little more sensitive, but not like a trigger finger as I've experienced with some other tuned vehicles.
All in all, I am definitely pleased with the tune. It is about 80 degrees outside (muggy and humid), and I'm sure the performance benefits would be even more obvious when it's cooler outside. The Edge does not feel like a porker anymore, and feels like a lightweight car. The benefits are in line with what I have experienced in tuning other vehicles. No, it's not going to be like "Whoa Nelly" like when I went to Stage 2 Protune on my old WRX. It actually reminded me of the difference I felt when I tuned my Focus ST.
Tuned vehicles I've owned; 2008 Jeep JK Wrangler, 2011 Dodge Charger V6, 2008 Subaru WRX, 2004 Subaru WRX, 2018 Focus ST, and now a 2019 Edge. The only vehicles I had a drastic difference with was the 2008 WRX, as it gained a turboback and intake with the tune. I'm sure the Edge would also be drastically different with that as well. I do have an AFE Pro Dry S filter, and a custom exhaust with a 14x9 Magnaflow muffler.
TLDR: The Edge 2.0L LMS tune makes for a decent "Stage 1" tune that should provide ample midrange and passing power. I'm already looking forward to testing against some of the young'un boy racers with their Honda Civic Sports. I have full confidence in the power the tune gives me in order to put those Civics down.