OBA is great place with many thousands of satisfied customers.
Like anywhere successful, OBA has attracted a little gang of haters and nutters, who pose as victims, so this advice will probably be ignored:
1. Hasn't anyone noticed that £=$1.75 instead of $2 + ? That said, OBA is probably still cheapest for courses but there was/is always somewhere cheaper (than anywhere you chose !) for hour-building. However, don't make the mistake of deluding yourself with a false comparison e.g. a share may involve you in 'unlimited' liability and overheads. There is, also, the factor of where is it ? (e.g. Naples and Ormond Beach are definitely nicer than Orlando, Florida, Cowtown Kansas or Shoreham Sussex) and can you actually achieve the hours because of weather, aircraft availability, airport opening etc.? Be wary, also, about 'headline' rates per hour- they omit to mention extras such as landing fees, accommodation, club sub, insurance, fuel surcharges etc.
2. On the behavioural front, any school/hotel has no reasonable alternative to excluding naughty boys/people who won't pay. Responding stupidly by inviting them to sue you is a blanket denial, as well as extremely rude and simply asking to be taildragged off their premises if you've had both the cheek and courage to remain !
3. OBA tell me that Mr Fisher is simply paid (for whatever he does there) = employee not proprietor. In any case, abusing Fisher,Thompson etc.with posts on a forum for professional/student pilots is not .... 'sensible'- they are both experienced CAA examiners and are entitled, if not obliged, to defend their personal and professional reputations so you are, also, causing trouble for PPRuNe which publishes such defamation.