It was pretty amazing. I had one of the original phat PSP-1000s which ran custom firmware, so I had all the old emulators on there as well as a bunch of the original PSX catalog. And since that thing was hacked wide open you could completely customize every aspect of it. It was so f***ing great. There were also some really great original PSP games, especially if you like RPGs.
I still have the system. The battery is completely dead but it works running on the AC adapter. Unfortunately in a fit of stupidity I used the MicroSD card I had in there for my daughter's toy camera. Lost everything I had including a Castlevania SOTN perfect save that even had a maxed out Muramasa, that I had pulled off my old PSX memory card and converted.
Yess it would be my favorite console of all time even if it weren't for modding, but with modding/emulators it takes it to a whole other level. You should definitely get it up & running again. I still have an original phat PSP-1000 as well as a slim one, I think 2000 lol. Both still fully functional! I haven't hacked either of them, but did hack my PS Vita which is the primary console I play, far more than my PS5. And 90% of the time on my Vita I'm spending it playing PSP games via Adrenaline (PSP emulator):
I often play NHL 07 for it which there's a modding community for and they've added modern rosters, jerseys, etc. I dislike how large devices have gotten, whether it's the Steamdeck/Switch or even smartphones. I find new consoles much less ergonomic and handhelds certainly went downhill, it's a shame the PS Vita had such great hardware but the games were absolute shit compared to PSP imo. A lot of games for the Vita seemed like mobile phone games. PSP had so many full fledged console quality games
I have so much nostalgia for the PSP, I got it when I was a little kid right before a family vacation to Thailand & Hong Kong. The PSP was so ahead of its time where you had home console quality games, music, movies; even a web browser in the palm of your hands. Several years before smartphones even took off. I felt like I was in the future as a little boy carrying around that device while travelling through the super metropolitan cities of Bangkok & Hong Kong. Takes me back to simpler times whenever I play it. I know everyone has a console they have their emotional connection too from childhood and that's mine but I think even objectively that console was the most ahead of its time of any console ever