ROP cruise in mine is about 135 knots. Things I love about it are how roomy it is inside, a huge baggage door with a luggage area that holds 270lbs. The pilot side door is a big deal to me too. Most pilots don't seem to care about pilot side doors, but for my wife and I, it makes loading and unloading much easier, so I find it's worth mentioning.
As mentioned previously in this thread,
beechaeroclub.org is an incredible resource. My membership fee has paid for itself many, many times over already and I've only owned my B24 for about 2.5 years. Some of the guys on that site are ridiculously knowledgeable about this type of aircraft, so it's been great to have access to that sort of specific info.
One of the main issues with these aircraft are from corrosion at the points on the airframe where the original fresh-air ducting touches the aircraft skin. To put all new ducts in the plane isn't really a show stopper, as new non-corrosive ducts are readily available. It's not a fun project, but it really wasn't terrible either and I'm not really a mechanical guy by nature. You just need to make sure that any corrosion that may exist from this issue has been taken care of.
Check to see how much play there is in the forward nose-gear when the plane is jacked up. I actually still need to get this fixed on my own plane, but it's just something that eventually gets worse over time and needs to be resolved. I believe there's a certain level of tolerance that's within limits, but I'd have to check to BAC site to see what those measurements are.
Has a nose-gear, down-lock indicator been installed? This is another fairly inexpensive fix that I did to my own plane that I highly recommend. What this does is verify with certainty that the nose-gear is locked in the down position when you look at the green indicator in the cockpit.
Not positive all of the above are issues with the A24 model, as I'm no expert, but those are the ones I know of off the top of my head.
I really don't have any regrets with my purchase and I think the plane is undervalued, which is great for those looking to buy them. For the short 120nm trip that I use it for most of the time, it's been fantastic. If you're looking to fly across the country all the time you may want some extra speed; buy for your mission.