NAD are good wholesome bits of kit, the tape-decks were never anything particularly special though, the decks with "Play Trim" a basic azimuth adjustment feature were the better of the bunch and easily on a par with the well reviewed (read that as they bribed What Hi-Fi magazine by taking loads of advertising space / give out freebies to staff) Sony TCK-611s or the Yamaha decks of the early 90's
Nakamichi, Studer Revox, Tandberg, High end Aiwa, and the very rare Arcam Delta were the daddies of the Compact cassette.
I'll get my beard.