ExTiX is the only Ubuntu-based" distro that is based on LXQt. Others in the list are:
1. Debian (2)
2. Manjaro Linux (3)
3. Mageia (17)
4. GeckoLinux (33)
5. SparkyLinux (34)
6. ROSA (63)
7. Calculate Linux (89)
> 8. ExTiX (96)
9. siduction (102)
(based on: https://distrowatch.com/search.php#advanced)
Because it uses Ubuntu's "innovations, I find it very easy to install on my Dell XPS-15 notebook. PPA, Grub-customizer (added via PPA), etc means that it easily co-exists with my multi-boot menu. So it easily allows any Linux kernel of my choice to be chosen. It easily allows selection of any of my three Windows or eleven (11) other Linux operating systems to boot.
However LXQt desktop environment is competing with LXDE & XFCE. All three seem "middle-weight" equals to me. Other final details might help me to decide to tell the differences, ... if I really cared.
Version: 17.2 Rating: 5 Date: 2017-03-30 Votes: 0
Tried to boot from USB stick and didn't work well for me. Decided not to try and install to SSD (seemed unfinished to me -maybe try a later version).
Version: 17.0 Rating: 9 Date: 2017-02-23 Votes: 3
Amazing distro! Keep working on the design overall this is highly recomended