Your impression of CI3 over others?

Hmmm.

I googled Codeigniter Jobs and found loads. (The very first recruitment site listed had 409 current vacancies). The very first one was this:

PHP Developer - £40k + Benefits - LAMP Stack
ComputAppoint - London
£35,000 - £40,000 a year
The current PHP framework of choice is CodeIgniter. The role involves a large amount of PHP development, as well as MySQL database and Ubuntu Linux server...
CWJobs.co.uk - 12 hours ago - save job - email - more...

But there were quite a few.

Admittedly many stated Codeigniter, Laraval & Symfony such as this one:

Senior PHP Web Developer
Midas Specialist Recruitment - Preston
£40,000 a year
Magento, WordPress, Codeigniter etc. Experienced in working with PHP (5.x). Framework experience such as Zend, Codeigniter, Symfony, Laravel or similar....
Easily apply to this job
3 days ago - email
Sponsored by Midas Specialist Recruitment

Just in case any young impressionable coder is reading your comment.

Best wishes,

Paul