First off, coming from the Mark III, the IV on the outside is very much similar, and you could mistake them at a glance.

Although improved from the Mark II to the Mark III, I see a marked improvement for the Mark IV.

With the 5D mark IV though, I'm loving the 6-7 fps and the 41 crosstype focus points are well spaced so I'm shooting more keepers making culling in post much harder, a good problem to have

Enter the 5d mark iv:-Greatly improved DR, but not quite as good as Nikon, but the difference is only significant at base ISO.-Amazing customization, from button layouts, to autofocus settings

I have watched every Mark IV Youtube videos available before its release so that I would know exactly what to look for upon receiving the camera

With Adobe's latest Camera Raw 9.7, Adobe now supports the Mark IV, but you'll need the newest Lightroom 6 or Lightroom CC, which is another cost to add to your upgrade tally if you don't already have those versions and plan to use Lightroom.

Some may wonder why Canon didn’t put this in the Mark IV

If you have an investment in "L" glass, prefer a full size camera in the hand (some of the mirrorless cameras are brilliant, but I have a hard time with their handling when they're combined with heavier pro lenses), and need a versatile, super reliable, and impeccably well built piece of kit, then you'll love the Mark IV

I love the new upgrades and features on the Mark IV

At the end of the day, this is the whole point of upgrading so no complaints here! :)I highly recommend Canon 5D Mark IV!

I was generally pleased with the image quality of the MKII and initially wasn’t “wowed” by the Mark IV in this regard

50 megapixels would have limited the Mark IV in many ways (high ISO performance and FPS for example) and would be overkill for 90% of the work for which most people use the camera

Lightroom now supports the 5D Mark IV and the photos attached are just using the default settings in Lightroom (no extra sharpening etc)