Depends on what you want!
I think it really come down to the driver what he/she wants form the car, personally I wouldn't buy Accelera only cause I feel it is false economy as it only last 12K max on the front and 20K rear"EST". speaking from friend, family and reviews who bought Accelera's on their car.
whilst other alternative's may cost more but last longer and give better traction on the road, even though it maybe a matter of meters " in some cases", but it is enough for me to pay that bit extra for that little bit of reassurance. Only cause there have been may time someone has cut me up or someone slams the brake REALLY hard in front of me?
I have had "goodyear efficient grip" for £150 per tyre "yes it does hit my wallet hard", compared to Accelera costing £52 per tyre for the same size, however the goodyear tyre lasted 30K on the front and 48K on the rear and still lasting.
so to sum it up I wouldn't personally buy Accelera tyres although I don't see them as bad tyres and would drive the car with them on until they finish, however wouldn't recommend them as there are better options out there. With Budget tyre you get what you pay for, maybe in a few year they may well get better but for now it's not the way to go.