The phrase "high quality" exists because the market is saturated with garbage. Beware of these signs:

To find the best files, users often turn to curated repositories. Look for libraries that offer "Decrypted" IPAs, as these are the cleanest versions to apply premium tweaks to. Top Features Found in Premium Tweaked IPAs

: If you are jailbroken, these modern managers are much faster and more stable than the original Cydia. They support the latest repos where active developers sell their premium tweaks.