One of my clients was complaining about how difficult and expensive their last patent was when it was handled by a big firm. Sadly, this is not an uncommon story, where the inventor had to suffer through several revisions of the initial application because it was technically incorrect and was missing many essential elements of the invention.
The problem was exacerbated when the response to an Office action was handed off to someone unfamiliar with the case, and the inventor essentially did all the background work to present their case to the Examiner. Oh, and by the way, over $180,000 was spent prosecuting the patent. (The Big Firm billed by the hour, too.)
Not only is this story one of utter incompetence, clearly excessive billing, but it is one of poor claiming strategy.