I got a ZT+ with an old Empire 598 that I just restored. Despite it's lowly status, it is a very nice sounding cartridge. Actually, I'm kind of shocked at how good this turntable and cartridge sound. I thought I was restoring to sell, but this is a keeper. Musical, great imaging, wonderful frequency response and great toe tapping dynamics.
Grados are often described as warm. I suppose they are a bit warm. But I find them neutral and full bodied, without a trace of bloat. Compared to Shure cartridges, I would characterize them as having a stiffer response. Less lush and rolled off in the upper frequencies. Maybe barky is a good word. The ZT+ is fuller sounding than the Ortofon OM-30, but to me, just as clear, with better midrange presentation. I would also favor the Grado over the venerable Pickering XV-15 with Stereohedron stylus. The Pickering has a beautiful, but artificial glow. I love all these cartridges, by the way. Just commenting for a sense of differentiation.
This evening I have been listening to vintage Columbia Masterworks Respighi and Shostakovich with the Philadelphia Orchestra, Ormandy conducting. I love live symphony concerts and this rig did them justice. Very natural timbres. Great brass, strings, hall acoustics. Then I moved on to Black Sabbath Paranoid. Holy cow! I was air guitaring like the college student I once was. Now on to some 80s Chick Corea, The Joberg Sessions. This is a somewhat laid back record with some terrific subtle virtuosic playing. Everything is crystal clear. Don Alias Congas sound so good. Also Carlos Benavent on the Jazz Bass. Fantastic!
If this is entry level, I can see why a small family business like Grado is still around, while many others have faded away.