tbh... its a very conflicting decision, if you stay the was you are, its good, but not amazing shit... however, when you get turmoil, there is so much added power and accuracy put into every hit.
You have to decide whether you want to fight (aprox) level 100's or lvl 110's.
I would say its totally worth getting it, if your not in it for the money... but sometimes 110's bring chaotics, which you seriously need to look out for, especially with low def.
My opinion is that you should get it, but watch out for the tankers / main's as theyre all pretty good at tanking your shit, and with decent stats they cud get through your defence more than you can theirs.
Clans are another thing to mension, not much to say except to watch your back and that 45 def wont help you there.
Hope this Helps.