Welcome BDK,
I totally agree with all the feedback given so far. It appears you might be considering the 36mm because, like my wrist size, it is on the slimmer side. If this is the case, may I ask what size is your wrist ? Your post is timely to me as I just added a 36mm piece to my collection. While it is by another manufacturer, I have found that my comfort for smaller diameter watches has been growing over the last couple of years. As many brands have been introducing reduced size models in their offerings, this year's SIHH and BASELWORLD trade shows continues the trend. Sweet spot for watch sizes seem to be finding a 40-42mm range but also many pieces are also moving into the 36-38mm arena. The reason I bring this up is that, I for one, forgot how balanced and comfortable a smaller diameter wears even if a smaller wrist is not at issue. Those who have normal to larger wrists are too finding the 40-42mm has enough presence with the added bonus of balance and comfort. Looking back not that long ago, the IWC's that were offered in the 38-41mm sizing were IMO some of the best. I applaud all the brands for recognizing that there is truly a real pent up demand for popular models to be offered with a reduction in size. What I also find appealing with the reduced size models is that it provides a better visionary balance of the watch and strap/ bracelet. Again, IMHO I like seeing a bit more of the strap or bracelet across the wrist instead of so much dial presence and the loss of that which secures it on the wrist. The total design of a watch not only includes a beautifully laid out dial and case, but pairing the right strap/ bracelet to complete the overall package. Manufactures go to great lengths to get it all right so that's why I feel the reduced sizing now promotes the overall look in a positive way.
Should your choice be to "pull the trigger" on the Pilot 36, rest assured you will be investing in a high quality watch which as mentioned in the comments has all the ingredients that has put IWC as a historic leader in aviator style timepieces.
Forum members may have additional thoughts on the 36 and/or current size reduction offerings.
Let us know how it goes...and of course any photos would be welcomed.
Cheers,
Andy