I should be able to collect my MINI in 2 weeks time

So am now about to purchase my insurance. I have had various quotes, with Direct Line being by far the best.
This is the first time that I have had a car out right in my own name, with only me on the insurance, I'm getting a bit confused

and wondered if I could pick peoples brains!
I've read some posts saying that Direct Line do not insure like for like on mods. I will be having a Park Lane, with the only extras being a MFSW and folding mirrors, so I'm not really sure that that applies to me anyway.
Also when I ordered the car, I was told briefly about GAP insurance for £300 for 3 years cover. This obvious is on top of the regular insurance.
Has anybody had an experience with Direct Line? Good and bad? I would be interested to hear it.
Thanks in advance, and apologies for the waffling!