Yes, it’s relevant to me. This tree is right outside my back door, and I tend to keep my doors open when the weather is nice. So I get to look at the tree and flowers and smell them throughout my apartment.
Just barely! These javelin-like projections are better described as spikes than thorns. “Javelin-like” may describe them even better still. See pic below.
No shit Sherlock! See close-up pic, from this web page on lemon tree thorns:
This tree here is a full tree, not shrubby at all. It is taller than the adjacent one-story apartments. It needs to be trimmed regularly when the branches grow over the roof, otherwise they will scrape and damage the shingles. The lower branches over the walkway need to be cut away too, lest an unobservant pedestrian bump into one and the javelin-thorns put an eye out. Seriously, this is a hazard.
These are mildly sour and moderately sweet, and good for eating. They are definitely lemonish and not at all orangish beyond the general citrus flavor that all citrus have.