I'm not!
I did it once a few years back, but decided not to do it again.
Watch out for the traffic and vast numbers of inexperienced cyclists. I made the mistake of starting late and spent the next couple of hours trying to pick my way through thousands of riders who were doing some really stupid things such as stopping or swerving suddenly for no apparent reason, sailing through red lights without even looking, bumping into other cyclists...
The delays caused by the cyclists made some drivers really angry and I saw many of them jumping lights, overtaking where it wasn't safe to do so, shouting, waving fists...
I quite enjoyed the ride beyond Preston, but felt that too much of it was on busy roads. I'd suggest making an early start and getting ahead of most of the less experienced cyclists and not getting caught up in as much traffic.
One other thing to watch out for if it is still on the route - I think the place was called Haigh Hall. We ended up going down a steep little road in a country park. The organisers had put bales of straw down to make chicanes to try and slow the riders down, but it was obvious that there had been collisions with the bales. In fact, I nearly hit one myself. I came whizzing down the road, and without warning there was a bale in front of me. There was a lot of loose wet straw lying about which made bike control a bit tricky.
Keep your wits about you and you should have a good time. The big park in Blackpool was nice.
Oh yes, there was another road safety hazard - I caught up with three attractive young women who were doing the ride wearing nowt but thongs and tee-shirts. I was feeling tired, so I had to draft them for a mile or so, you understand. I found it ever so slightly distracting...