Did this yesterday - AFAICT it worked fine but I have the following to say

1) There is no space for a free form user comment or two and I felt that I
wanted at least a line or two - (maybe a single tabbed page) to qualify my
answers / add a small comment .

2) Ranking (without qualification) is very open to misunderstanding..

EG

I rank ItemA with a 1
I rank ItemB with a 2

Does this make ItemA more important than ItemB because I ranked it first
or is ItemB more important than ItemA because I gave it a higher 'score'.

The market research industry ( in which I work ) goes to significant
lengths to avoid this.. because it is often not clear from the context
and respondents are notoriously lazy in their reading of written
questions..

The problem is also easy if tedious to deal with EG

"Give a score of importance from 0 to 5 where
0 = no importance
5 = high importance"

3) As a general rule I hate questionnaires that have to be completed
on-line..
I want to download; go off-line; answer the questions; review my answers;
some time later perhaps on the next connection; transmit the answers and
this questionnaire doesn't allow this.

However - enough of niggles - I assume this is a relatively short lived
project and I guess you'll accumulate the data you need quite easily..

Regards John