If you're happy, then there's no problem.

Different amp combos can slightly alter the sound and frequency response, but it's not necessarily a case of "this is better than that". Its more just what you prefer.

The main case crin was trying to make was, don't buy an amp expecting them to transform your headphones. Some claim that if Headphones sound bad to you, you just need to spend more on an amp and they'll sound good. This is a trap that is easy to fall into and if you're on a budget, it's totally fine to spend your money elsewhere and save where you can