TurboToys, The only 'problem' I see with D114 is that it doesn't have any wax on it (or does it?) so waxing the car will be an extra step;
meguiars d115 is the same thing as 114 but with a wax. although for the 115, it says dilute 1:4 for waterless. so the economy is out the window there. at 64 bucks for a gallon. you are paying 64 for 5 gallons instead of uww+ 5.5 gallons for a third the price. i would still do d114 and use a preferred topper after that, it doesn't take much time to do it.
on the upside, if you are using a coating or sealant, you'll be able to clean the car without fear of putting something less durable or less shiny/slick on top of your existing coating. good for the people using opticoat and such, retain the beading that the coating gives. instead of relying on constantly putting wax ontop of your coatings.