Boot space was THE important thing for me as I had a Qashqai before which was really good for that. I do a lot of DIY too so need to be able to get stuff in there easily. Only downside could be to be able to put long slats in, the QQ did 2.4m easy but was 10cm longer or so.
The boot is really big when the level is lowered, I think. We have a dog, and he will have to go in the boot and when we go on holidays, we always manage to pack the car full (skimboards, skateboards, wet suits, food for self-catering etc). That's why I didn't go for the Q2. I think numberwise it is even bigger than the Qashqai, too. With the level lowered I assume. Go and have a look in the flesh, I think you'd be impressed.