I have an E495 (would have gotten the T495 if it didn't have soldered RAM and/or if it still offered a second battery), and it does okay. I think I get 3-5 hours battery (haven't measured it), and I'm considering getting an external battery pack before I need the extra battery life.
The E495 uses a newer rev of their chips and is completely usable (not as good as Intel) despite still not being on 7nm. I expect the next gen to be very competitive with Intel.
That being said, I'm really disappointed at the direction Lenovo is going by trying to make everything thin. I want a powerful laptop (compiling, light gaming) and I'm fine with some extra thickness, but I want don't want anything bigger than 14". If I want thin, I can go for the X models or the T...s models, but for some reason, the regular T line is getting thinner as well, and losing a lot of the reasons I have for getting them. I ended up with the E series because I don't want soldered RAM and I'm not paying a premium for a laptop that has much of what I want removed.
If System76 can deliver a decent Ryzen laptop (want those cores) with a good keyboard and open firmware, I'll pay. I'm happy with it being thick, provided it's not too wide (needs to fit in my bag). But all I see from System76 is mediocre laptops with open source bits, and that's just not my cup of tea.