One model fits most cruising type yachts.  During survey, we choose one from a standard set of lengths of the Transverse Link, the horizontal tube across the stern. There is also a special order longer version of the Track Arms for large yachts.  The various tubes are drilled over the full length so the user simply chooses which hole to put a bolt into to change the geometry of DD to match the yacht being fitted.
The means of attaching rigging to a yacht is very flexible. The lifting halyards can be fixed to single or double/ static or tensioning backstays, or mastheads, or brackets on masts, or any combination of these, and lie aft of the backstays so do not interfere with sailing
Normal davits have a fixed separation, being permanently bolted in, so they can carry one size of dinghy properly.  By contrast, DD has Davit Arms which slide along to fit anywhere along the Transverse Link and the Davit Arms have 9 suspension points each, so the user can swap dinghy sizes and lifting point styles within minutes.
The Transom Brackets have hole sets where the user fits 2 drop nose pins which limit the range of rotation of the Track Arms.  This permits use on a wide range of yachts where the transom rakes vary from vertical to 35 degrees forward.  It also permits one DD to be moved from yacht to yacht (of similar beam).
Dinghy Derrick can be removed in 15 minutes and stored, if no dinghy is to be carried for a period.
Dinghy Derrick has electric power permanently connected via a halyard to a powerful waterproof windlass.  This is operated by one of a number of push button pendants which the crew may carry around their neck, or a reserve deck switch. There is no physical effort required.  The windlass can be mounted in a wide variety of positions to suit the optimal halyard routing. There is no manual rope attachment required.
Dinghy Derrick can be operated remotely, so it can be folded up and away as the dinghy leaves the yacht and lowered down from a dinghy returning to an anchored yacht.
Dinghy Derrick comes with a very secure and flexible style of 2 pairs of different securing harnesses to prevent dinghy movement even in rough seas.
The mounting brackets are hinges so do not create a bending moment leveraged by the dinghy weight on that area of the hull, unlike davits which can be fixed on the transom of some yachts.  So internal reinforcement of the hull is not normally needed for DD, unlike davits where it is compulsory.
The load of the dinghy is dispersed over as many as 16 single points across the yacht structure giving a very safe and low stressed distribution and hence a high lifting capacity of 130 kgs /286 Lbs.  So an outboard motor can be left permanently on the dinghy.  Note that this is a serious issue with 10HP engines weighing 50 Kgs.
Climbing aboard a yacht from a dinghy in rough seas is a precarious business especially for older or inexperienced crew.  DD gives a large secure hand hold on the Transverse Link tube. DD will also in future offer a personnel cradle to hoist people from the dinghy onto the deck.
If you need to abandon ship when all electrical power is lost,  DD can still launch the dinghy in about 20 seconds subject to how the harnesses are/not attached. (Caution: See Terms & Conditions ##)