Check out the reviews, the Triban road bikes get regular good scores for a 'first road bike'. You get what you pay for typically and whilst these are 'budget' bikes, the kit (for the little I know) is good enough, solid enough. Is it the best? No. Does it have brand desire? No. I look at them like Skodas. Regular reviewed as 'Best [family] car' or whatever, but the badge still puts people off.
I am very happy with my Triban RC120 Disc road bike. I had been riding a 2012 Hybrid which will still do a job, but as a foray into road bikes I thought I'd go with this. I don't know enough to know if the wheels are 'bad' as some are suggesting but happy to find that out in my own time.
Good luck with the stock, if you have a store near you, go in often. Don't rely on the website. I happened to stop by with my partner (for other reasons) and wander past and they had an XL model right there, last one in the store! (hadn't planned on the RC120, but as it was there I decide what the heck).