I recognise much of the above in my own ‘feelings’ (it’s a very personal thing eh?). Like Ola, seeing the physics of planes in xplane was a big buzz, the way vehicles move in-sim is a big plus. Creamy-smooth fps adds a heap to the immersion, so you may see that I’ve lowered my XpX settings a little to keep the frames up. So any add-on that risks this would not be appreciated. Conversely, a high-res, high quality scenery is really cool too! Especially if animated well Variety, imagination, great night lit effects and subtlety add a lot to a good scenery. I hate repeating myself, but just look at Javier’s LESA, pump a few dozen of those out and anyone will do well! Even though I think the plausible terrain is cool and very powerful (and I KNOW, it will get better), flying around your local area with good photoscenery adds a lot to the experience. Anytime I fly from an airport that is really well integrated into the terrain, to another nearby one that’s just as good (I rarely fly more than 30 mins at a time), with great cloudy weather and a killer plane, is a moment to savor. It’s not one thing, but the combo of elements. I had that feel with your KSEA and the default 747 last night, seeing it all run at 25fps at dusk, with all the houses and my CBD in the distance (sorry!), with a low fog layer...it was a good flight!