I have been using this water bottle for a few days now and it works great. I have used the fruit infuser for not only fruit but also for ice and it works great. I have not eaten a seed yet! The blender ball worked great when I used it from my protein shake. I have not used the pill holder yet so I can comment on that yet. The cup/lid closes securely and I have not had any problems with the lid leaking so far. My son knocked the bottle over and it was laying on its side for about an hour and it did not leak. The carry handle is strong and secure. It fits securely Overall this is a great bottle to have.