I haven't used the Trendy enough, to be honest, to have any wear on the corners, siders, or bottom. I use her on special occasions or when I know I won't be running around. So, maybe that says something about the use of the bag! But, I know that many people use their Trendy regularly and don't keep her in the box like I do. But, then again, when I bought her I knew she wasn't going to be a workhorse for me - just a beauty.
I have other Chanel bags in my collection but don't live the lifestyle (or live in the right city) to use them daily. I tend to switch into them on the weekends. Although, I am trying to use them all more regularly and stop worrying about damaging them - they are expensive, so I should enjoy them!
My daily work bag is a longchamp because I can throw her around and walk home in the rain with her. I walk a lot to and from work, and don't feel comfortable (weather-wise and people-wise) carrying a Chanel through the downtown and the river valley. But, if I had a job where I could park affordable on the daily, I might use my Chanel Urban Spirit for work.
This may be a case where you end up with both the Trendy and the 19 over the years. The 19 is a bit flashy, but I find the softness/squishyness of the leather gives it a causal vibe that lessens the flash of the chains.
I hope you are able to see the 19 irl! I'm sure they will have one in one of the sizes/colours for you to check out (even if the black in gone for the moment).