If you know what you are looking for I would recommend second hand and look at a carrera tdf or a Specialised Allez or save up and get the Triban 3.
Having said all that I started off on something very similar (a Mercurio I think) from a cycle king. As I had no previous experience whatsoever of "proper bikes", I had no frame of reference and thought that what I had was an OK bike. It was only when I bought a proper road bike that with hindsight realised that I bought a bit of a dog.
The pros were this - it was cheap, it got me into road biking, it lasted about 11 months using it once or twice a week with a longer ride at the weekend it was just as quick as any other bike (at first) and I sold it for £50.
The cons were - In comparison to my current bike it was very uncomfortable, very vibey and buzzy through the hands, downshifters are a pain to use, it lasted 11 months - the componentry wore out very quickly eg I had to very quickly replace the useless cheap Kenda tyres almost straight away and the chainset showed some serious signs of wear and it just felt like it was coming near to the end of its life.
If you want something to use for 3-6 months or so to see if you like road biking and you are able to treat this bike as something disposable at the end of this period, however if you are already convinced that you do like road biking I would hunt for something better second hand
Having said all that I started off on something very similar (a Mercurio I think) from a cycle king. As I had no previous experience whatsoever of "proper bikes", I had no frame of reference and thought that what I had was an OK bike. It was only when I bought a proper road bike that with hindsight realised that I bought a bit of a dog.
The pros were this - it was cheap, it got me into road biking, it lasted about 11 months using it once or twice a week with a longer ride at the weekend it was just as quick as any other bike (at first) and I sold it for £50.
The cons were - In comparison to my current bike it was very uncomfortable, very vibey and buzzy through the hands, downshifters are a pain to use, it lasted 11 months - the componentry wore out very quickly eg I had to very quickly replace the useless cheap Kenda tyres almost straight away and the chainset showed some serious signs of wear and it just felt like it was coming near to the end of its life.
If you want something to use for 3-6 months or so to see if you like road biking and you are able to treat this bike as something disposable at the end of this period, however if you are already convinced that you do like road biking I would hunt for something better second hand