You're gonna get a lot of opinions on this subject.
Of all the coatings I've used, I will rank the ones (sold by AG) from easiest to most difficult (for beginners).
1. Pinnacle Black Label
2. McKee's paint coating
Those two are really about the same in terms of application and ease of use. You really can't get easier than those two. You spray on, spread with a coating applicator and buff away. Easy peasy lemon squeezy.
3. Wolfgang Uber Ceramic. Of all the dropper-style (thicker liquids) and spread coatings, this is in my opinion the easiest to apply and wipe away. I've used it on paint, glass and wheels. Very easy. A bit pricey though.
4. DLUX. Trim of course, but still super easy.
5. Gtechniq C1. Now that they've gotten rid of the gauze makeup applicators and now that you can use suede or their own, this one is relatively easy to apply, but I've found it to be a little dependent upon temp and humidity in terms of flashing. You really have to look from multiple angles and under various lights to ensure you didn't leave any high spots.
6. EXO. By itself, it's fine. Super hydrophobic. However, when you need to time it with the application of C1 (don't know about CSL), that's what makes it difficult. People have reported streaking with the combo. I've done the C1/EXO combo before and it looks stunning and is incredibly long lasting and hydrophobic. It's been on my wife's car for about 19 months now and still is going strong after 28,000 miles of driving messy kids!
7. Gyeon Mohs. Incredible gloss and deepening of the paint color, but, man, if you're slow on the buffing or overlook a high spot, you'll be breaking out the polisher like I had to the first time I applied it. Having used it a few times, it probably will be my go to coating for my own car.
I'll probably migrate to Wolfgang as my coating of choice for others.
There are some other coatings I've used from companies not sold on AG. They all fall in the range of easy to moderate.
Wheels? Use WG or just spray something on every couple of months like Hydro Blue or Wet Coat.
(Sent via my mobile device...)