I'm not currently using a HUD, I had a free trial of PT4 & it automatically applied player notes which I found invaluable as a new player. (I'm playing micro stakes also.)
My notes were a mess before the trial, now they look more like the notes the HUD creates:
[P] preflop
[F] flop
[T] turn
[R] river
[?] random notes - double barreling & check folding river a lot.
[P] open limp UTG: J6o, call all in 50BB.
[f] donks multiway with worse than top pair
[t] bet turn draw aggressively (x3 pot).
I will be investing in a HUD as soon as possible. The trial I had made notes automatically & I found them useful, educational even, as a beginner. + I'll understand/make better use of the statistics now.
Until then, I find colour coding players useful: TAG's red, maniacs green etc.