Do I see a coffee tree hiding in there?
When I was a teen, I had a Washington Navel Orange for a few years. Despite putting it up against a south-facing bay window in winter, it always sulked and pouted and limped into spring. Once outside, it would take off again and do well until coming back inside again in November. Eventually, the pain it had to endure inside during the winter months became too much for it and it perished.
In the meantime, though, I got a few crops of softball-sized oranges. They were big, great coloring, and, of course, seedless. But the disappointment was in the taste. Very bland and watery. Very little sweetness. Very little tart. Just... Watery.
I chalked it up to the relatively steady day/night temperature differential during its indoor months.
Successful citrus culture at our latitude (on the east coast) is an art. Anyone who can get high quality fruit and keep the plants healthy year 'round has my highest praise.