Unique among MM cartridges as it doesn’t offer a snap on replacement stylus which is part of the reason it performs so well.
The configuration of the cartridge is different from typical MM carts and it does sound different. The cheaper carts also have a bold, solid sound but they don't sound balanced. They are short on detail and low-level information. Like a picture in poster paints with no subtle shades. You get the big picture but not much else.
The Exact fixes all that. While it doesn't have a user replaceable stylus Rega address that by offering a generous exchange. You give them your worn out cart, they give you a new one at a reduced price. It actually works out cheaper than buying a new stylus for a lot of the carts in this bracket.