Mostly. Would be nice to have known prior hormone levels. There are some effects of LH/FSH beyond testicles and testes also produce some other steroids that will be lost. Pregnenolone and DHEA should be monitored.
Quality of life should be decent. Some silicone stones can be slipped in for cosmetic effect. But they will not hang properly without hCG [ or perhaps SERM induced LH/FSH].
Without TRT, LH/FSH could be very high and there could easily be hot flashes. Aside from obvious loss of sexual function, mental health/mood, cardio vascular health may be adversely affected.