So far so good for me, I'm not running it much but it only ever has issues in randoms, which I believe isn't part of the Arbibots script but the client itself. For a free bot I think it's fantastic.
ToshiXZ, who is an Admin on Powerbot, is good friends with Arbiter, and is an extremely good scripter, and he said he would rate ArbiFire at 6-6.5/10 on undetectability, 10 being 0 chance.
amazing bot i used it to get to 99 and was always getting 90k+ xp an hour with maples, using it at varrock east bank normally botting 10+ hours a day and no ban