I've owned my 2018 i7/MX150 for the past 3 months. I picked it up used on hardwareswap for a good price. I was coming from a Dell XPS 13 2016 i5/8GB and even though the screen quality was really great, the resolution and aspect ration wasn't. The i5 6th gen cpu and 8GB of ram wasn't cutting it for me anymore. I was originally looking to get a Surface Laptop 3 but it was super pricey and the XPS 13 2020's at the time were also.
Pluses for me: Thin and light, very good 13.9" screen 3000x2000 (sweet spot between 1200p and 4K), decent lower end GPU, thunderbolt for my TB3 dock, speakers are decent and battery life is okay. Undervolting cpu is a must though, which almost every thin and light laptop... these tend to get hot even after a repaste. Overall my experience has been good.