So?
Just edit PS1 if you want it to look different.
Code:
user@comp:~> echo $PS1
$(ppwd \l)\u@\h:\w>
user@comp:~> su -
Password:
comp:~ # echo $PS1
\[\]\h:\w # \[\]
comp:~ # export PS1="\u@\h:\w> "
root@comp:~> export PS1="\u@\h \w]# "
root@comp ~]# export PS1="\u is a little tea cup # "
root is a little tea cup #
And so on. Add the command to ~/.bashrc to make the change permanent.