It really is, Totori is one of three games I've bothered getting platinum for (PS3 Ver), the other being infamous 1 and gravity rush was a freebie. I really recommend anyone who hasn't tried Totori to pick up a copy on either the PS3 or VITA.
You'll enjoy Meruru as well if you haven't tried that one also, it's already out on the PS3 but the Vita supposedly adds things and the PS3 DLC comes free. It pretty much snowballs everything from Rorona/Totori and makes both alchemy/world exploration enjoyable. Only thing is your forced to get the true ending on a new game+ unless they changed that.
I don't advise playing Rorona however, unless you just want to complete it for either completion sake or you dig the characters and story. It's rigid and stiff, so you pretty much need to plan what you need to do as opposed to having leeway in both Totori and Meruru.
If you, or anyone has a PS3 and enjoy this type of game. I also recommend Ayesha, which is the start of a new series (labeled Dusk, the prior three were Arland). The atmosphere of the setting is pretty cheery for it being a post-apocalyptic world, but the cast of characters (minus the spoony bard) are all enjoyable. The game however is easy, so long as you keep mindful eye on upgrading equipment and armors; but it has a lot of freedom when it comes to doing what you want even up to getting the required plot items (you need a total of six, which I think the game gives you 2~3; and there's 8+ other ones to grab around the world). Need a guide for the true ending probably however (Just to figure out the requirements).
The final boss theme of Ayesha is a major earworm, I couldn't get it out of my head for a while. Avoid the link if you/anyone don't want yourself spoiled.
The sequel to Ayesha (Atelier Escha & Logy: Alchemists of the Dusk Sky) follows up a year after Ayesha ends iirc. Haven't played this one and been avoiding spoilers, but I do know you choose between two protagonists in this one. Same storyline, but different events between the two, so kinda like Atelier meets Star Ocean 2.