I use it for 4-6 hours daily, 25-30K steps a day (10-13 miles), and I'm in my 2nd year with the LifeSpan TR1200-DT3 treadmill. No issues at all but I also don'

I use it for 4-6 hours daily, 25-30K steps a day (10-13 miles), and I'm in my 2nd year with the LifeSpan TR1200-DT3 treadmill. No issues at all but I also don't get motion sickness easily as some people do. Typing is no issue and when I need to focus, I do slow down and take breaks. The key is to integrate it within your day slowly, not to go crazy. I wasn't able to do an hour the first day I had this. It took about a month for me to manage an hour and another month to do two and eventually, 4-6 hours with a tiny stretching exercise every once in a while is very easy for me. In fact, I have problems not using the treadmill. My body wants to walk every day and if I don't use the treadmill, I get really anxious to get out and go for a 10 mile work. I lost a lot of weight, so this is definitely the most important and totally justified purchase I've done for my home office.