Tell me your experience with leash walking

Hi everyone. I'm just wondering how is leash walking going? Is it enjoyable? Stressful? What type of training are you using? Did you teach your puppy to heel or keep the leash loose? I wanted to teach my puppy just to keep a loose leash but he's so friggin overstimulating, going round and round me, trying to sniff anything in our vicinity. I enjoy him so much almost all of the time. I love off-leash hiking with him. But oh my gosh, I feel like if I lived somewhere where I could only exercise him on leash, I'd be rehoming him! Worst part of my day! I realize he's a puppy and that I need to out more time into training. I guess thats the purpose of this post. How's it going for you and what have you been doing.