I'm a regular participant on the CZ Forum. (I have a CZ-75B Compact, a highly tuned CZ-75B SA, a pre-B CZ-75, a CZ-85 Compact, and a Witness Sport Long Slide in .45, among other guns. I've had, but traded away, a CZ-75B, a CZ-40B and a CZ-97B.)
One of the continuing debates on that Forum is whether its better to get a trigger job up front with a new gun, or to just shoot it, to break it in. I opt for a trigger job up front.
I routinely get the trigger "tuned" by a local gunsmith when I first get a new gun -- there are exceptions, but few. (My Witness was a trigger horror story -- it took TWO trips to the gunsmith, a lot of my own work on the trigger bar, and thousands of dry fires before it finally got where I wanted it to be. Its nice now.)
Why pay for a trigger job early on? I'd rather my early shooting experience with the gun be done with the best possible trigger. Around here -- and I know its more expensive elsewhere -- a simple trigger job (if you give the gunsmith regular business) runs from $30 - $50. That's relatively few boxes of 9mm ammo, and probably less ammo than it would take to get the trigger smoothed out. but, getting the Kadet Kit will make that break-in cheaper, as previously, noted, because you could use .22 rather than 9mm ammo.)
I understand why folks would rather spend the money shooting the trigger smooth... But I just don't like shooting grungy triggers.
I use my Kadet Kit with my CZ-85 Combat. I haven't tried it yet on my newly-acquired 75B SA. It doesn't work as well on my Compact, but that not the case with most folks, who use the Kadet Kit on any 75-based frame. (I haven't bothered to find out why it doesn't work as well as it should on the Compact frame, 'cause I really don't care...)
It's nice, when practicing presentations and first shots -- important in IDPA, my "game" of choice -- to be able to use the Kadet Kit, 'cause when mounted, it gives me the same trigger and same sight picture as my 85 Combat.
The rear sight on the Kadet Kit, is DIFFERENT than on the other CZs (including your Compact), as they don't have adjustable rear sights. This is not a problem, but something to be aware of.