An official review of the government's project to roll out super-fast broadband in Wales has started.
The Welsh Audit Office will be assessing the programme in a bid to determine whether it is likely to deliver its intended benefits.
More than £400 billion has been invested in the Superfast Cymru project, which aims to bring high speed internet access to 96 per cent of Wales.
The Audit Office will assess the effectiveness of the Welsh Government's strategy and targets for the programme and its contractual relationship with BT, as well as its arrangements for procurement and risk management. It will also look into how the government is monitoring and evaluating the project.
Part of the review process will include a survey of close to 1,000 households and businesses in two areas where super-fast services have already been introduction - Blaenau Gwent and Gwynedd - in a bid to see what impact the improvements have had.
The Audit Office has also asked for the public to provide details of any experiences they have had with the Superfast Cymru project. It is due to release a final report detailing its findings at the end of this year.
A recent statement from the government has defended the progress of the rollout of super-fast services, but the quality of broadband in many parts of Wales remains a pressing issue.
Last week, Welsh Assembly member for Ynys Mon Rhun ap Iorwerth told the Daily Post: "Slow or non-existent broadband is one of the most prominent issues in my assembly member postbag.
"Whilst 21st century broadband is beginning to reach parts of the island (Anglesey), there is frustration at the pace of investment in some parts and too many people feel they’re being left behind."
Meanwhile, Aled Robert - the Welsh Liberal Democrat assembly member for North Wales - said it is "outrageous" people are still having to put up with "horrendously slow" broadband connections.