I thought S5 was much stronger than S4. I kinda felt like S4 got away from what we got see in the three years prior. So yes if you enjoyed S1-3 I would watch S5.
Fantastic close to a really really fun 6 years. One of the best series ending episodes I can remember.
I will say I did not like the fact that Christopher just turned out to be clone of Wes with a slightly awful spanish accent like what the fuck I get what they were doing but it makes no sense