We did not get the q-bots, and the kids got in free with vouchers we had.
We actually had a great time. Went on the driving school bit first thing, the only ride that was a terrible queue was the Coastguard HQ, which actually was not worth it, we only went on that as it was right next to the driving school, but they only opened all 3 lanes of boats just as we were getting on one. Think that was 45 mins for that one.
We made great use of the app after that, which told us queue times, so we knew where to go and made decisions based on that.
The kids each chose 2-3 rides each that they definitely wanted to do, and we made sure we did those for sure, anything else was a bonus. We did a fair few rides using the app, and drench towers was great fun.
We got there at 9, got the tickets, went round mini land from half past, and then made our way down to the Driving school once the gates opened. And we were there till 7pm at closing. BUT the kids got on everything they wanted and more and certainly did not feel like they missed out. Probably would not bother with a q-bot even if we wanted to spend that money. Kids managed just fine with what queues we had. We probably did about 14 rides in total, and that was with half an hour spent at lunch, an hour in Drench Towers (with changing time) and another walk around mini land after lunch, the maze and the half hour or so they spent in the playground.
But we are never ever allowed to mention the Jolly Rocker pirate ship thing. My 8 year old hated that, so much so it has been renamed The Not So Jolly Rocker of Doom.