The GT is running MS3 era effects. AKA missing the sheen of the GT1000 but generally speaking ok. I had to jump through a bunch of hoops to install a win 10 driver because Boss assumes every machine has a group policy (or lack thereof) with unmanaged windows update service that allows you to connect wtfever and expect the internet and windows to magically provide drivers. Oh Boss. Tone Studio on it still runs on Adobe Air which is something special in almost 2023 as well.
All this aside; assigns are unexpectedly super clunky. Only way you can do multiple assigns is using the extra ctl/accent/exp pedals and buttons. The number buttons are strictly for preset to preset changes. You can assign things to the current number slot. So preset 3, button 3 will allow for additional assigns. The other numbers in a bank take you to that preset. There is a manual mode like a traditional pedalboard. Preset switching is pretty fast so you could set up effects banks and just go preset to preset. But screw that obviously.
Effects sound good, if a little lacking in sheen compared to this generation of effects. Boss Reverbs are GODAWFUL. I am really still not sure how they are such big names in the pedal game with reverbs that sound this sh*tty. The 1000 verbs are fine-ish when combined with other effects to dress them up. The 100 era, OTOH; are not fine.
Was futzing around with it a few nights ago and got one of the best clean sounds I have ever had using the Natural Clean Amp. I am obviously big on my clean tones. Especially when paired with verb and delay algos from 2007