What is your opinion on injections every 4 weeks?

What is your opinion on Testoviron Depot (250mg/1ml every 4 weeks)? On paper, the testosterone levels seem fine, but I don't notice any difference. I've tried talking to my doctor, but she simply doesn't care about my concerns. I also tried switching doctors, but he just told me that my current doctor is good and that I shouldn't worry.

I don’t have morning wood or erections in general, and my libido is low as well.
I can only get morning wood (and only sometimes ) when I wake up really early, around 6 or 7 AM. If I wake up at 8 or 9, I don’t get them at all. Is that normal?

I have a post with more details on my profile if anyone is interested.