I just picked on of these up, coming from a Galaxy S T800. I was planning to keep the S for a while longer but it just seemed to be really struggling even though the battery seemed health, was pumping out the correct volts and holding a good charge. I tried a vew ROMS but I did really see much difference if page loading for web and stuff, mainly dolphin, all were very very slow. Much faster on the S5e, feels like the S did when I first got in back in 2014, very happy with my purchase, dont need the HF jack anyway.
i'd definately recommend this as a fantastic upgrade to the now ageing tab s 2014