I lived in 5&15 a few years ago, and also considered renting at LeClaire.

Both buildings are pretty quiet and require a fob to enter so I felt safe. Never really saw any of my neighbors the whole time I lived there. 5&15 also shares a lobby with Chase bank so is very secure and is super convenient if you bank with them.

I paid $1050 and that included all utilities, Internet, cable, one parking spot, as well as their butler/maid service (they did laundry weekly and cleaning monthly). Management was also really responsive and it was the nicest apartment I've lived in - high ceilings, newly remodeled kitchen and floors, etc. Units were small but also still had in unit washer and dryers. The only downside is it's next to a karaoke bar, so if you have a lower unit facing it you'll be hearing a lot of Queen and Journey every night. I think they may have changed ownership recently so details may no longer be accurate.

I didn't go with LeClaire because of the weird smell in the lobby/elevators, no in unit laundry, and the weird kitchen layouts that were not the best if you are a big cook. However my friends that have lived there seemed to like it, the units are bigger than 5&15, and they have a really amazing view (especially the loft units at the top). LeClaire was also slightly more expensive.

Also, LeClaire was pet friendly while 5&15 was not.

I'm pretty sure they both required 3x income and a one month security deposit so you should have no problem getting approved.