my tank is 6'x2x2
I wanted to go rimless, since I love the look and all my smaller tanks are rimless.
but the manufacturer made a mistake and made it with euro brace ... me being too lazy to return it [also got a discount decided to keep it and cant be happier now ! most importantly when cleaning the glass water doesnt splash out, also when putting hands in the tank, you have an edge to work on as well. since your tank is only 17" tall, then you wont have much Issues reaching the sand with your hand as well with Euro brace..
and lastly if the tank is high enough, noone is going to see the euro brace ! but if low / top down look tank then you would be happier with rimless.
HTH,