We just downsized a few weeks ago and got rid of our Honda Odyssey and bought a 2008 Honda Accord EX. It is a pretty large sized car and has a LOT of leg room. Now, three adults in the back, I wouldn't think would be comfy for a long term trip. But three kids is definitely doable. My only thing would be for the carseats...all three seats have the 3-point seat belts but it's slightly narrow. Our daughter who is 6 is able to buckle herself w/ no problem. One adjustment is the doors....she was used to automatic doors, so we are openig the doors for her (unless there are no cars parked next to her) til she gets a little stronger. It would be worth it to just try it and see what you think. We got a great deal for ours, just a few hundred bucks over invoice cost which is great for a Honda.....it will hold its value a lot more than some of the other cars out there.
The gas is EXCELLENT. I just went almost 2 weeks w/o a fill up and w/ the van I had to fill up once a week. It gets 21 city/31 highway, however, I averaged mid 20's in the city w/ LOTS of stop & go. I can only imagine the mileage on the highway. Can't wait to take it on its first road trip! It's very surprising to me that a car this size can get such great mileage....it is a 4-cylinder (190 HP) but to me feels very quick.