ADL5569 - Single ended input to a single ended output


I've seen the question asked on here about a differential input to a single ended output and the design example of a single ended output to an differential output.  My question is what are the repercussions of using this amp single ended input to single ended output?  Is it as simple as terminating the negative output port?  Do we get a reduced gain or instability?

To put it into simpler terms, we want to use this part as a DC coupled RF amp.  

To add, do you have a cascaded example?   If we are using the DC coupled amplifier configuration, will the output DC level double if we cascade two in a row?

Thanks in advance!