Asked on 28 Mar 2019
Personally think it depends on the reason why you are switching job in the first place.
If it's due to financial reason (the increment is important to you) you can either:
1) Accept the offer
2) Ask for more and risk losing the offer. If you do not foresee receiving similar offers soon, it might not be worth the risk to proceed
If it's due to other reasons (e.g. working environment, better career progression), I do not think it's worth it to negotiate if the current offer is able to meet your requirements.
Also, I don't think that the final offer is likely to be far off from the initial offer.