ADK makes many excellent mics, and have done so for many years. Occasionally, there are some duds (e.g., A48, SC-1). ADK has had so many models and versions of their mics (nearly 100) that it can easily be difficult to keep up with all that is out there. For the most part, they are excellent mics for the price, including the numerous discontinued models. The newer 3 Zigma CHI mics are simply wonderful. The Custom Shop offerings are robust and top shelf. The ADK AP 1 and AP 2 preamps (with swappable input transformers and discrete op amps) and the CLA 1 and CLA 2 compressors (with swappable discrete op amps), are world class.
Perhaps most importantly, Larry V. (owner of ADK and 3 Zigma) is most accessible, and will talk your ear off with all things audio related. Great service.