In SBA:
Spitfire is overpriced and the owner has consistently been in serious legal trouble, Above All is a mill that overcharges, and trying to get a hold of anybody at Red Baron is problematic.
Try the SB Flying Club. Mike Fountaine is a great CFI.
Other local airports:
SZP: CP Aviation has cheap rentals, good aircraft, onerous and inane policies, and their Chief Pilot sends fictitious complaints to his buddy at the FSDO if you ever get tired of their instructors flaking out. Berkeley and Luci are good CFIs, Michael Philips is also if you can deal with his personality.
CMA:
Camarillo Flight Instruction and Phantom Aviation are both good outfits, instructor personalities vary widely.