Just noticed this thread after buying a new drier ourselves and running it for a couple of days. I'm surprised no one has mentioned Sensor drying - it stops when your cloths are dry. Genius. Because people always put it on for a bit longer than needed, it can save a lot of money over the year and less hassle. Set and forget.
We got condensed because they are much more convenient. There is not much to go wrong TBH, don't let that put you off because all they do is push the air through a metal box/radiator type thing that cools the air so the moisture drops out (i.e condenses) rather that just pumping it out and pulling new dry air in. Its a very simple process. Every month or so it gets pulled out and run under a tap. It can take a bit longer than vented , but thats ok if you have sensor drying, and not much anyway (our is faster than my mothers one and one we have at work, both vented) - how fast your washing machine spins makes more of a difference. Some can be set up as both vented and condenser now too. We have a decent Hoover model and i guess you get what you pay for. No problems with ours creasing and shrinking cloths, but we only put stuff in that can be tumble dried and use the right setting
The other thing is reverse drying - drum goes both ways to stop stuff getting rolled up in a ball and taking ages or coming out a bit damp in the middle. And get the biggest drum size you can as it will dry faster. Don't, whatever you do, buy a washer-drier.