I love my SE!
I bought an unlocked SE at BestBuy last year for $199.00 + tax.
I had to ask an employee to bring it out from a locked cabinet because they only display the (much more) expensive iPhones.
It runs the latest OS and gets regular updates but on a much smaller frame similar to the old iPhone 5.
It is a little hard to view a website on Safari unless you're holding the phone in landscape mode but it fits nicely in a pocket.
The only phone I enjoyed more was my 2014 MOTO E that I flashed with Lineage OS but it got tiresome having to compile the OS each month for the security patches as it is no longer an "official" Lineage port and also because the Moto uses CDMA I had to flash to the original stock OS whenever Sprint updates.