Bought a Genesis bicycle for £100 and wanted to know if it was worth it since I can't quite identify the exact model I'm not seeing any cue in regards to the model, thought that maybe there's someone here who could help me identify it.
Thanks in advance :D
It looks like a moderately modern road bike that has been refitted with MTB flat bars to make it a rigid hybrid commuter. 

Modern threadless steerer and a cartridge BB suggests its within the last decade or so.

As for value - if you needed a bike and could afford it out of pocket, then you're doing fine financially.  Now just ride it and enjoy not paying for operating costs of a motor vehicle, or per-ride costs of public transport.