We went in July and did a few rides, I think it’s one of the better Neilsons for cycling.
They have new Boardmans which seem to be pretty good, 29er trail hardtails (no dropper), gravel bikes and road bikes. Yes, you can take them out on your own and they have Strava maps you can download there and they may have some Garmins to lend you as well. They have some phone holders which we borrowed.
Staff were all good and there’s plenty of route options for you. I was keen to try a gravel bike for the first time and was impressed, now considering n+1!