Mine are 3 weeks in flower under led, I will be able to compare past experience with 1000w hps soon to give my honest opinion on them, all about quality of end result
There are some strong opinions around here but I like to do my own testing, good & bad in everything

Led lights show deficiencies very well, you'll spot slightly off color leaves mile away, I have 1000w king plus in 2x2 vivosun veg tent, on veg switch only & I should've gone with 600w for that small of area. I dont have anywhere else so all my veg, clones, seedlings are in here, just different distances from light. I have 2000w in 4x4 vivosun tent & have both switches on for flowering. Have inline fan & carbon filter for big tent & just open vents for small tent. 2 small clip fans for big tent, 1 for small tent.