• Not as easily installed
• Very difficult to remove if you installed it incorrectly or don't want it on the paint any longer
• More susceptible to mineral deposit or water spots
• Lasts longer than waxes or sealants, but may not look as good
• Generally requires more detailed maintenance to keep looking proper

So it's not as cut and dry as you might think.  It wasn't an easy decision for me to decide what coating to offer.  I narrowed it down to 4 that I was considering.  Kamikaze ISM, CARPRO CQUARTZ UK 3.0, Dr. Beasley's Nano Resin Pro, and this Crystal Serum light.  I have ISM on my RS and had it on my Gen 2 Raptor.  I also did a section of the Raptor with Nano Resin Pro that looked and was applied much like ISM.  Those two are the most "wax-like" I've encountered.  CQUARTZ UK 3.0 probably beads and protects the best that I've found.  It doesn't look as good as ISM or Nano Resin Pro, but I think it's durability is likely going to be better. 

None of the above really matters to me any longer because I've found my preference.  All of my Pro buddies kept telling me Crystal Serum Light.  Finally when I got my hands on it, put it on the red R8, then ran my the back of my hand on the paint afterward, I instantly knew after all this decision making that this was the coating.  Top CSL with EXO v4 and treat with Bead Maker regularly, and we have it.  There are lots of great coatings on the market, but I don't want to be a retailer.  I want to offer you the one I use.  This is it.

You may notice that the EXO you receive has a slight yellow colour to it when, normally, it is entirely clear. This is due to a variation in one of the solvent carrier liquids used in the formula. In order to allay any concern there may arise from this, we have carried out a full set of accelerated tests on this batch vs a previous batch that is entirely clear.

As you will see from GTECHNIQ's results here, there is no difference in performance. (NB these tests equate to approximately 3 years real-time). In addition to this, please note that all solvent carrier liquids fully evaporate from the surface after application so there will be no change to surface color from the product. Furthermore, as shown in this video, the yellowness in the liquid disappears once the product is opened. (NB during the course of the video the bottle is agitated twice causing the liquid to froth).

Install:

• Wipe the car down with CARPRO Eraser.  (You have better polished the car before or you aren't OG approved.)
• I have 2 of my Coating Removal Towel 3.0 ready.  One will be for an initial wipe and other for final wipe.
• Prime the CARPRO Foam Suede Microfiber Applicator on an Applicator Block.
• You don't want to need to use a ton of product.  Just a few drops per 2' x 2' section.  I apply in a cross hatch pattern.  Check out the R8 video above.  
• I'd do about two sections, then wipe off one, do another, wipe off the previous, repeat...
• Wait about 3 hours and apply a 2nd coat of EXO v4.
• After the first wash, use OG Drying Aid, and you'll be good to go.