The lights themselves are great, nice and bright with different settings/blink patterns to match the conditions! The main problem is the strap for the rear light, it's flimsy and does not have one side permanently fixed to the body of the light. Within a week of buying two light sets, one rear strap broke and the other was lost while off the bike being charged. Lezyne sells replacement straps for ~$5, including different lengths, so I bought multiple.
These lights are daytime bright. They feel very well built, too. USB-c charging.
strap on the taillight is a little short, barely makes it onto a 27.2 seatpost. Lights are bright, have nice settings. Good battery life.
