I bought a first act acoustic for my daughter to learn on. It was untune-able.

I've been learning the uke for a year now, and after a few months, I've been irritated by my uke on some chords. Talked about it with my uke teacher, she pointed out that the string (the E string) isn't quite right (if it's in tune on the open string, then the G on that string is sharp). These things matter more than you might think.