The turnaround from SF1 to SF2 makes it a bit harder as I would have liked to have gone down to London earlier and stayed a few nights before, but I've still decided to get tickets for the Semi Finals and Final. I would have rather been able to choose the seats but at least this way saves me spending ages trying to find seat views on google whilst deciding. Hopefully early purchases will get the better seats from that category.
I'm expecting to be able to buy tickets to the group games closer to the tournament, but if I miss out, at least I have tickets for the main ones I want to