I've got an 04 Astra Van which is a bit of a jack of all trades and consequently a master of none.
Pros: I can drive it to work without looking too much of a ****t although I do look like I'm delivering washing machines if I'm wearing a tie. It's more economical than an astra estate as its got less weight and obviously it drives just like a car. It was also fairly cheap, has aircon, cd player, reasonable seats. Oh, and apparently it'll do well over a ton, but thats not something I'd know about.
Cons: Bikes have to have the front wheel and seatpost out if you want to get them in the back. Its poxhall so feels a bit worn with anything over 70k on it. Also the 1.7cdti's have issues with the ECU – not a cheap fix. And girls are never impressed by vans if thats an issue.
To be honest, if you're going to get a van, get a proper one. Mine doesn't do anything that well and is a compromise. Next vehicle will be either a 5 series or a T5/Vivaro