I’m a very happy user of Lubuntu on an 8-year old Dell laptop – with a modest Celeron 550 processor (I only recently got around to upgrading the RAM from 1GB to 2.5GB) and intend to follow it up with an SSD.

I’ve stuck with Lubuntu for the past 5 years or so after experimenting with briefly with Elementary OS and regular Ubuntu. I’ve never had any issue installing it and/or configuring it.

Xubuntu user for years also. I still find it pretty zippy and everytime I go out looking at alternatives I always come back.

Same here. But I must confess that I do get a new laptop every 2-3 years, so maybe it is getting heavier, but I don't notice it.

But I was surprised recently when win10 killed my ssd, so I installed Xubuntu on the spinning disk. And it runs as fast as win10 did on the ssd. The only thing that does take longer is booting up, but I always had the feeling that windows was cheating somehow, it would boot to the desktop really quick, but it was not a usable desktop. That still took a while to become responsive.