I have been on the other side of it (the employers side) and I felt really, really sorry for the individual because he had got such bad advice from his no-win, no-fee lawyer.
The lawyer had not done any work on the case, just banged in a claim for £30K.
Company rejected it and offered £2K.
Offer was rejected and went to ET.
Lots of waiting around, case was delayed, started but over-ran and couldn't be completed, rescheduled for 3 months later.
Eventually settled for about £3K.
From the point of view of the individual involved, as soon as the lawyer said £30K, the individual thought that was a professional assessment of what he might get, whereas it was only a opening negotiating tactic on behalf of the lawyer (not explained by him to the client). So the individual felt screwed by the eventual settlement, even though it might have been fair.
It took months and months and months, and I can only imagine how awful and stressful it must have been for the individual.
The lawyer had no tactics for the ET when it over-ran, and in fact his questions completely showed his hand, and could have allowed the employer to provide evidence that would have left the individual with no claim.
Sorry if that isn't the kind of tale you would like to hear, but I would advise you to get the best legal advice that you can, and to find someone who you can trust and who will be honest with you.