looks exactly like my Carrera TDF 08
same frame+ fork design with the same shifters and rear mech with better wheels on yours afaik.
imho it is ok as a cheap second hand entry level bike but i would not buy one new !
The shifters+ mech are shimano compatible that offer a more solid click than shimano st2300 shifters but the rear mech is like cheese and i burnt through mine in 1 winter of commuting.
The frame is "lightweight" but not light enough that you will not know your lugging up a hill.
If i was buying a new bike in that price bracket i would head ober to decathlon.co.uk as they now deliver and go for the triban 3, similar price with according to the specs a carbon fork, st 2300 shifters and aluminum frame + a triple to help less powerful riders on big hills