I'm eyeballing the flexio for a couple reasons, one is definitely the spray pattern options. also, reviews seem to say it can spray paint which is off topic here, but would be nice around the house.
I wouldn't touch harbor freight. their stuff is so lacking in quality control you never know if you have something good or crap. the stuff I was all excited to get hardly gets used because it lacks the features I want/expect (e.g. stapler with no depth control, gotta do that by regulating air pressure).
I despise wagner paint sprayers, but the hvlp has been a dream.