I actually bought mine online before our 1st trip with our twins in JAN 2006. At the time, there were only maybe 3 other people in the park with that stroller. This last trip, there were MANY of them. I would recommend that you make sure to bring something to mark your stroller so it's very easy to find in the crowd and doesn't get mistaken for someone else's stroller!
That said - we LOVE this umbrella stroller. It's been through 2 WDW trips (about to go through a 3rd one) and numerous other outings, with no problems. The handles are at a great height - my husband is 6' and I'm 5'4" - we're both comfortable pushing them. Also, the seats are wider than the other umbrella strollers I've seen, so the kiddos don't seem cramped sitting in them. I had the same issue previously mentioned about one side of the canopy wanting to pop off when you fold it...that can be a bit of a pain when you're in a hurry, but it's not really a big deal.