Very much a go-to Eq
In a fit of insecurity with Logics bundled Eq, I decided to get the H-Eq as a sort of step up. Its a really good Eq, small increments of change produce significant improvements when boosting. The analogue modeling is subtle, I can imagine if you commit to a certain type on every single instance of using H-Eq it will be more obvious. To my ears, switching between the model does have an immediate effect in terms of how the boosts "sit" in relation to the surrounding frequencies. Its almost like a type of Q control with subtle, pleasing distortion.
For boosting, I don't feel the need for any other Eq's, unless Im going for an overal tonal shift (like using an amp simulator or an ambience with heavy tonal emphasis).
My gripe with the software is cosmetic - I find the graphical depiction of the curve somewhat imprecise and often use Logics Eq for "surgical" cuts. Sometimes I have to rely on my eyes as I can get a bit carried away and cut into areas I know I will regret later.