The Glassdoor website has a lot about the Financial ombudsman service, much of it (though not all) highly critical. The LeO appears less often but I have noticed one recent comment. There are 4 or 5 reviews.
“Good work experience for law students interested in policy making and research on legal service providers.”
To use the Glassdoor website site you will need to join it. It’s not too arduous and you can join for a week on a temporary basis but access will then be then restricted unless you “join”. It’s anonymous.
Log onto http://GLASSDOOR.CO.UK
Click Companies on the top menu
Type “Legal Ombudsman” in full (no quotes) and click the search icon
Click on Reviews