Which errors? There will always be compromises.
For instance, the Chronos mounts eliminate meridian flips and the need for counterweights, but at the cost of some carrying capacity. And they use gears, therefore exhibit PE.
OTOH, the "small" direct drive mounts now being marketed, such as the ASA DDM60, DDM85 and DDM150, or the Astelco NTM-500, require meridian flips and counterweights, but punch above their weights, and the tracking precision and resolution is crazy high. Best of all, being gear-free, they are also PE-less.
Here's a fascinating new friction drive mount that eliminates the need for counterweights and meridian flips, has an enormous carrying capacity, but which exhibits some PE. (Though very little PE, around that of a Takahashi mount.)
When you get up to the DDM85, Mesu-mount level, there's surprisingly little difference in price between them and, say, the Takahashi EM-500, Paramount ME, or the Astro-Physics 1200GTO, while exceeding the capability of those quite a bit. (Professionals and top-ranking astrophotographers consider zero PE systems to be better than low PE ones, and worth every penny.)
Like all things, it comes down to your budget in the end.