I fully realize that asking the following questions might not seem terribly practical, from several points of view. Still, I believe that taking advantage of the tens of thousands of hours of experience and countless sums of spent money represented on this forum will produce very usable, informative, quality information. And thank you (in advance) for your valued input. With these things said… I am about to buy either an I1 or the Phantom 3-pro. I have over 150 hours of flight time with my Vision + - no accidents – still original (dirty) blades, etc. I currently favor purchasing an I1 with dual controls (wife=photographer and excursion pal). I have joined this forum to support the making of an informed decision in this matter. I have read quite a large number of the threads already. Very interesting & informative. The questions: 1) I would want a hard case. Best one(s) would be? 2) I would want at least 2 extra batteries – what are the best/most dependable? 3) Are there any videos that take me from receiving the I1 in a box and landing it after the first flight? (I’m coming up on 70 years of age and have reached my second childhood: I learn better [again] with pictures!) 4) Are there are consistent problems with the I1? 5) Any aftermarket items that are really worth their salt – blades, etc.? 6) Any extras that I should put in our ‘flight bag?” (I noticed that ‘travel mode’ (whatever that is); can sometimes require a flat/plain surface – and so on.) 7) Any absolute do’s? 8) Any absolute don’ts? 9) Where is the best place to buy the I1 – best after-purchase service, etc. Once again, thank you for taking time to share your expertise and experience to provide input on any or all of the above.