Here is my honest word for everybody reading this forum with all pros and cones, always remeber it is your decision to make not the pthers to make it for you
Nephrology has challnges and is not lucurative specialty compared with Pulm/cc, cardio, GI and hem onc . but still better than endocrinology , ID , geriatrics and I think rheumatology.
I did work hospitalist for many years before doing the fellowship , I witnessed that almost all of my colleauges I started working with non of them stayed jn hospital medicine longer than 5 years and it look like hospital medicine is a kind of bridge job in this country as even people who are very entheuthiastic to hospital medicine initially , they change their mind after some time specially after few years of working as a residents to ortho, GS , GI and cardiology.
I did one year of CC with nephrology and it really give many work spectrum and higher pay compared to general nephrology , but alwyas remeber that if you do CC you can not do nephrology in the same time but you always can do some nephrology moonlighting just to prevent burn out from CC.most of your income and finacial stability will come from CC which pays as high as cardiology and GI with only 15 days a month work. in CC no papaer work and no scut work for surgeon and other specialist so it is much better tahn hospitalist.
I think nephro CC could be number 4 after GI, cardio, pulm CC , and it is much better than straight 2 years CC alone.As you always you have a back up specialty.
But remeber, It is very tricky to find one year of CC fellowship after nephrology , so do not assume that going to nephrology fellowship will gurantee spot for you.
This is my honest advice that I developed from first hand experience. I never regreted about doing the fellowship , I would be very sad if i stayed in hospital medicine.