I've now done two runs of week 7, on Saturday and just now, Monday lunchtime. Knowing that you have a 25 minute run with no intervals is a challenge but I have managed it so far.
The good thing about it is that with no intervals you can use your own playlist. I did try to keep the bpm down, but not sure what difference that made. As I ran I was trying to remember how many songs I had put on and what the half way mark etc was. Panicked when a song I had forgotten about came on, wasn't as near the end as I thought. The playlist was actually a couple of minutes over the 25 but I ran to the end to make up for a few stop-starts with traffic.
I feel I have made real progress but still finding each run a fresh challenge. Amazing to think that a 25 minute run would have killed me a couple of months ago.