Out of all MMOs I've played that's f2p, only PSO2's model made absolute sense to me. A normal player can achieve endgame 'pro' status without even spending a single yen on the game. In JP (the other servers of TW, TH and SEA are shit, due to broken economy and bad SEGA decisions), all of the paywall stuff is either an upgrade booster that has a high chance of failing to transfer to your weapon, or clothes.
Trade is restricted for non-subscription "premium" players, who can avail of that service for a month or two and continue playing without.
But even then, you can play without premium because while premium grants additional shop sale hours, you can obtain shop vending hours through trading a particular collectible that's pretty common now should you just grind for a bit.
Premium grants additional storage space, but said spaces remain accessible even if premium expires. Personal (character inventory) storage space is permanent, but is a separate purchase than premium, and while inventory can be restrictive, an expanded storage due to an update means you can simply stow away items you don't need until youre ready to process them.
And those clothes mentioned? If you're playing in JP, all of them are dirt cheap, so you can accessorize quickly. Those clothes are for appearances only (in SEA and other servers, this is NOT TRUE, as they give stats. Tch SEGA).
Gameplay is not point and click; it kinda operates on TPS action mechanics, so it is actually pretty fun for the most part.