I have an IPAD Pro 10.5 bought it last September, I love it. I bought a 64 gb with cellular service. The model with cellular service comes with a gps chip while the wifi only doesn't. I bought the IPad from Verizon, it was $100 or $150 less than the Apple store if you signed for 2 years, I added it to my mobile plan for $10 per month plus Verizon's one time plan change fee which was like $49.
I just looked, I have been using it since September and have used 28Gb of memory used out of 64Gb, so 64 Gb is more than I will ever need. I have FF pro loaded with all the US charts loaded. I'm a formerly rusty pilot, now just a little tarnished, and I tell you, I love this thing for situational awareness. I bought the Crew dog ADSB receiver, which gives me traffic and weather in flight. The cellular service also works intermittently in flight for weather. The crewdog AHRS does not work well through FF but you can open it in a separate browser and it seems to work well.
I took the IPad on a 3.2 hour cross country a few weeks ago. I used it before the flight to recheck weather, it was on during the whole flight, I used it at lunch to recheck weather and surf also. I still had about 30% left on the battery when I was done. I just added a 30,000 mAh backup battery to my flight bag for back up. I have it in a Targus case that has a faux leather surface that does not slide around in my lap, which is where it rests when it is not in the seat next to me. I have had no issues in light turbulence and chop with it flopping around, it's yet to be tested in moderate turbulence. I love the size and it seems to work well for me. I've used it in a 172 and an SR 20. I wouldn't mount it to a yoke, but I don't think I would do that even if I had a smaller one. I think you will love it.