Hi Ben and welcome.
We have just completed our first year of an IVA (also with Melanie)and I can appreciate where you are coming from on this.
We owed nearly £100,000 to 6 creditors, so the decision was touch and go (one creditor held the casting vote) so we had prepared ourselves for bankruptcy.
As it turns out, the IVA was agreed, and we are paying back a substantial chunk of the debt we accumulated over 10 years or so.
It feels good to know we are paying back some of the money, although we have to pay for a sixth year if we are unable to raise sufficient equity in our house (unlikely)so in some ways it seems like a long haul.
We are lucky that we are in well paid jobs, and are likely to receive pay rises regularly, so may eventually be able to pay back the monies we owe sooner.
As other posters have said, only you can decide. Five years is a long time to have to watch every penny, but we have actually enjoyed the challenge so far, and have totally altered how we view money.
Melanie and her team are very supportive, so if you do decide to proceed with the IVA, I would highly recommend them to you.
Best of luck, whatever you decide.
Blue