Dave,For the sake of friendly debate and another users opinion

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BWa,
No doubt, DK equipment is great equipment for begginers simply due to ease of set up and use. That is the beauty of this equipment but not the only selling point and a potential buyer should not confused be by its simplicity. Simplistic does not mean it is not capable of doing fantastic repairs. It is great tooling at all levels of skill. I will use myself as an example. I have used this equipment and DK resin for years with consistant phenominal results and I have very high standards. Allow me to boast here a little!!! Honestly, I would put my repairs using DK up against any other manufacturer using the same resin any day. I do not just achieve okay repairs with DK, I get great repairs and do not see how they could get any better unless there is a better resin to use. (Thats another topic though). If a chip or crack is 100% filled, then the tooling and technicdian did there job structurally speaking. Cosmetics is a whole other topic and is more related to resin and technique. NOTE: I am certainly not saying that they do better repairs than other brands, I am saying that with skill, and skill is needed with any brand, can do the same as any other and visa versa.
That being said, DK does have areas that techs might cosider DK lacking and one is vacuum.(Another debateable topic) You do not need to pull big vacuum to get great results. I will agree that more vacuum will alow you to preform a repair quicker but not necessarily better. The time difference could be a big thing if you are an extremely busy shop. Keep in mind every brand has its good and bad points.
Tooling is a personal preference thing, so choose a quality brand based on your needs and there are choices, get training, and you should be fine.
I am to this point very happy and this was merely my accounts and opinions. Certainly not the final word on anything. I as well am always open to evaluating new tooling and resins.
Good luck.