Yes, those who rid their heart of hypocrisy are happier, and they put themselves in line to enjoy perfect happiness in the future.
إِذَا جَاهَدْنَا لِنَكُونَ صَادِقِينَ وَمُخْلِصِينَ فِي عِبَادَتِنَا ،‏ نَحْصُدُ بَرَكَاتٍ كَثِيرَةً .‏