'better' is subjective. after playing the GRX40, it may/ may not be better for you, yes?
i have nothing against Ibanez guitars- more than half of my collection here are Ibanez. keep in mind that the Gio series are entry level models which are hits/ misses. for this range of Ibanez models, i have respect for only 2 models: GSZ120/ GAX70 which are good instruments per se.
if your budget hovers over the entry level offerings, i suggest you keep your options open & embrace a well constructed guitar with appealing playability & tone. move away from the Ibanez brand name if you have to.
**PS: there is an Ibanez GSZ review in the database, do refer to it.