You're seriously comparing the abomination that is POL with a launcher which only downside is slow download speed from outside Japan with occasional errors when people are hammering like crazy?
Yeah, no way is this PSO2 manager anywhere near close as bad as PlayOnline. Not even in the slightest shred, and I've played FFXI at least
worth of in-game time.
"Occasional" errors is not how I'd describe my Sega patch manager experience at all. In fact, I'm pretty sure, for a while there, the launcher would forget where I was in patching and re-download everything, even if I just spent the last 3-4 hours downloading... I got constant disconnection errors, and there's no retry button. It has to check files EVERY.SINGLE.TIME after disconnecting, too, which takes -forever- because unlike POLs file check, it cross-references with the server, and it never seemed to remember what files it had and what it didn't. I had times where I'd get booted from file check! It was rage-inducing. It shouldn't take me 3 days to patch your game -_-;.
I -never- had issues with POL's patching, except on Patch Day themselves. Even then, POL actually gave me some sort of decent progress meter telling me how many files I needed/had already, and because it updated file-by-file, if your connection dropped (as mine tends to do when downloading large files), you could just...retry that file and all was well.
...That's my rant. XD. I'm probably just unlucky, but damn, I was so happy when the game finally finished patching last night. Only to log in and see they had just started the maintenance X.X