I think the new Summons/Espers are alright, though a problem I have is how (SPOILER)Chaos, Zeromus, Exdeath, Adrammalech and Altima don't really look like what they did in FFI, FFIV, FFV and FFT (unless Altima is based on FFTA's Altima, not FFT's), so if it wasn't for their names, I couldn't recognize this tribute to the older FFs.