The phrase "nice convenience" generally refers to something that is very useful and makes life easier in a pleasant way.
Sentences with «nice convenience»
It also receives nice convenience upgrades making it a stylish crossover with an economical price. (bestride.com)
The power folding third row seats are another very nice convenience to have and go up and down in mere seconds with the push of a button. (usedcarsgroup.com)
We absolutely love living in China, but I think with my grandpa's passing and our continued vacations outside of China — which remind us of how nice convenience is — we could really go for the comfort of home right now. (theconscientiouseater.com)