This mod is intended to strengthen all available partners slightly, bumping their total stats up by around 30 each. This should help them better-match a lategame player character, and also hopefully emphasize their strengths.
With these changes, certain partners will outshine an unspecialized player in the partner's area of specialization; Meredith will generally be better at melee damage than an unspecialized player-character, for example. However, they shouldn't completely overshadow the player in general - they each have a generally-defined role, and it's a good idea to pick a partner to best compliment your playstyle.
Update: Removed nested metadata from mod. This shouldn't result in any gameplay changes, so it might not be worth updating the mod if you already have it. It just reduces total filesize by about half a kilobyte.
Minor Update: Mod should now be visible in the Mods Loaded section, although there aren't any additional gameplay changes.