The good news is, this isn't a difficult kit. The bad news (which isn't very) is that you have to remember that it's a high-end/limited-run kit. Pay attention to the latter and you can achieve the former.
The radiator detail in the wings will not be seen once assembled, even if you open up the waste gates in the wings. The internal structure does give the wing some rigidity it wouldn't have otherwise.
Most of the cockpit can be seen, so that's good. The detail is all injection plastic and looks good when finished. You need to pay close attention to the instructions to figure out where everything goes.
All the seams needed filling. I got the fit as tight as possible, then used CA glue over the seams to make them disappear for certain. I used my pounce wheel to rescribe the very petite surface detail.
It's obvious there will be additional releases, since the markings - for aircraft in 1941-42 prior to May 1942 when the national insignia changed - are all "gunships". The "Whirlibomber" modification didn't happen till September 1942, after the Dieppe raid.
Overall a nice kit. I think the MSRP of $117 is a bit high, but I see it at online shops for around $85-$90.
If you like the Whirlwind, this is the best kit of the airplane in any scale. Size wise, it's about the size of a 1/48 B-26 Invader.
I'll keep the nose cap off till I have it painted and decaled, so I can then insert the cannons without having to mask around them to paint them.
8 attached images. Click to enlarge.