Hi all, new here. Obviously I'm looking for my first bike here and came looking for suggestions, tips, knowledge, etc. My budget is $600 firm so to get something decent I'm looking for a used bike. I look to be riding quite often, as much as 10 miles a day, but will definitely not be using the bike to compete in any way. So far I've come across these two options:

.....And I can't post the links. So I'll give some rough descriptions

Giant TCR2: $450
6000 seriies sl aluxx aluminum frame
Carbon fork
Outfitted with full shimano 105 components
Shimano wh-r500 wheelset
Bontrager racelite tires with plenty of life left in them
Vetta wired speedometer

2015 Trek 1.1: $500
Bone Stock, Hardly Used, Basically Mint
Shimano Claris

Thanks in advance

P.S. Please do not suggest just saving up more money. I'd rather not invest more money into a hobby I am not experienced in. Thanks