So, I've been receiving some mixed signal in regards to the efficacy of summoning as a Sorcerer/Oracle (full caster progression but stuck casting as a full round action). I've seen opinions ranging from "amazing" to "basically useless". So, I figured I'll just come out here and ask: what are your opinions on the subject? Do you think Oracles and Sorcerers are "good enough" at summoning to use it as their primary tactic in combat? Or do you think such a character would not be making a good contribution to a fight? Anything in between?