"I always struggled with interval training. Even if I tried to run faster I usually ended up at the same old plod-along speed.

However, I thought I'd try the AudioFuel interval training and really enjoyed it. The coaching advice really helps and I found myself running faster to keep up with the beat.

Not only that but now I look forward to my weekly interval sessions! ...and I achieved a PB at a 5k race last weekend. Thank you!"

Julie Mitchell-Mehta, 26th April 2011

"I love AudioFuel and know my running has improved since using it. However, I have a small gripe. It's that as it goes from track to track sometimes I end up on the wrong foot. There must be a beat missing or an extra beat, because I go from running Left Right Left Right , to having to lead with my right foot (which I don't like!)

I've just written a post about it on my blog (http://greatnorthtrytorun.blogspot.com ) which might explain it a bit better. I wonder if anyone else has noticed this?

Still love it though and will be purchasing more!"

Julia W, 7th April 2011

"Hi, Have just purchased Audio Fuel and have done 1 long run for 2 hours and 1 run of an hour.

I find it fantastic and motivating. Really got into the zone and before I knew it I was finished. I have entered a half marathon in April and have a feeling this is really going to help.

Well done and thank you."

Susan Brennan, 18th Feb 2011

"I met Angela Kennedy last November at the running show in London and bought the Adrenaline Junkie.

I was amazed how good it was to run to - you don't feel alone its like Martin Yelling is with you training you. It always brings a smile when he shouts up "stay loose".

My husband has downloaded further training tracks and its brilliant. It was nice to meet Angela who actually was able to speak about the product she was selling rather than some of the people you meet at shows who have no idea about what they are selling. She did a good job in recommending this product to me."

Angie Mc, 17th Feb 2011

"Over the course of the last 6 or so months I have purchased a number of your packs. They are all excellent and have contributed to an improvement in my running performance, for which I thank you.

However, as good as they are as a training aid, I feel you could produce a series of "race ready" compilations including some suitably rousing tracks to carry the runner through the final phases of various timed sessions - not necessarily increasing the beat tempo, but at least feeding through some additional element of energy in the music.

Beyond that, you have an excellent product."

Mark, 21st Nov 2011

"I tried out the free sample yesterday-it was fantastic I ran faster and stronger than i would normally, I love the voiceover tips too, defo going to buy the marathon training series in prep for doing London in April.

Thanks Audiofuel-you've def changed my running for the better!"

Beth Lardner, 8th Nov 2010

"Just got back from an amazing hour run with the "Run Free 1" and I'm buzzing. this really does work, thanks so much AUDIOFUEL

Can't wait for my run on Saturday now. my trainers are by the door ready to go ..."

Alex Adams, 22nd Oct 2010

"I have to listen to music on long runs - it really helps to keep me going. AudioFuel is the BEST! They have the most brilliant electro house tunes that pull you along with a spring in your step - the pain is so much less noticeable when you feel like your dancing! I highly recommend Audio Fuel for runners."

Jacquetta Wheeler, Supermodel, 27th March 2010

"I have been running for ages now but have got into a really bad habit of run/ walking which I really want to kick. I havent run continuously for more than 10 mins for about 3 yrs (I only walk for about 30 secs but it is still walking!) I tried the free sample and it worked - only one little walk. Have now downloaded loads more sessions and ran 36mins continuously the other week and nearly did the whole 1hr green run as well (only 2 walk stops which is amazing for me). Not only that but my times are much faster and I feel like I have had a brilliant workout. Thank you so much. Things can only get better!"

Sarah Jones, 5th June 2010