Thanks all for your answers.
Jloup, it is excellent, just like an orange.
Its coldhardiness remains to be tested in my climate. It has no problem with short cold spells down to -8/-10C (it has not been colder since I planted it) but it froze half to death after several days of continuous freezing temps in 16/17 where the absolute minimum temp wasn't even that low. This is the first time it has fruited after the damage.