Well kept implies ongoing care, not just one-time cleaning or organizing.

Not Just Clean

Using 'well kept' suggests that you have a positive view of what you're describing.

Positive Impression

'Well kept' often hints at someone's pride in their belongings and the effort spent.

'Well kept' implies that the information or secret has significant value or importance.

Use 'well kept' to highlight the impressiveness or shock value when a secret is revealed.

'Well kept' suggests the secret has been kept for a long time, not briefly.