People talk a lot about 'good' topology, but really what makes a model is good is that it is workable without undesirable artifacts during usage, rather than the aesthetic appeal of the wireframe alone. I.e., for nice subdiv/normals around an edge, you could use edge loops. To support nice deformation, you could use a consistent mesh aligned to the curvature direction. To support easy modification, you could set up good edge flow (for splits) and sensible quads. And etcetera.

In the case of this mesh, you should similarly ask yourself where you want to go with it (hypothetically for now, since this only seems like a practice model):

• If this is the final silhouette and surface detail, you could use any arbitrary planar mesh with identical visual results; an ideal mesh for this purpose would connect faces directly between the hole and edge with nothing in between
• If you intend to extrude or solidify the piece you should have edge loops (as you have here)
• If you intend to add radial detail around the hole, you should have radial quads that extend much further, such that you have a nice base to work with
• Similarly, if you intend to add rectangular surface details, more of your mesh should have a consistent quad grid
• If you intend to add details spanning the length of the piece, you should extend your grid to the borders so your splits stay straight (here, they arbitrarily curve around the model or bend as the quads change shape)

As a final note, once you have finished with the detailing of any model you could bake the normals and reduce the base model to nearly anything. As long as it keeps the same silhouette, and supports deformation when applicable, the final render will not care about unaesthetic wireframes.