Wether it's worth buying is upto you and what your requirements are for a phone. How you use it etc The hinge is built to withstand a lot of abuse. It will be more that strong enough Some have had issues for whatever reason with the screen at the flex point. But most users seem to be happy with theirs and have no problems. It's usually the screen protector anyway which is a simple thing to replace. Best thing is to pop in to a shop or better still a Samsung Experience Store to get hands on with it and see how it suits you
After 9 days Samsung wont cover under Warranty because of damage. The phone was brand new when sent back to there 3rd party as the screen at the hinge went. Now they have sent photos with of a phone that cannot be the one i sent. Unless i play football with it in my sleep. I have asked for tho courier photos as the part thet they are showing as damaged was the only part that was working. Buy the phone if you have a good lawyer