Solution for multiple laptops hooked up to a monitor

I am awaiting the arrival of the StarTech Dual Monitor KVM Docking Station - 4K - USB 3.0 - File Transfer Compatibility - Universal Laptop Docking Station.

For now, my set-up will be a

• Dell Ultrabook (work issued laptop) that will continue to be docked to it's current station, which will be connected to the StarTech.
  
• 2012 MacBook Air
  
• Logitech keyboard/mouse via USB
  
• LG Ultrawide 2560 x 1080
  
• Dell P2417H (work issued monitor)
• WD 3TB My Passport external drive - USB 3.0

I will continue using the Dell in it's current dock for an easy way to charge it, since the StarTech doesn't charge computers. (Otherwise, it's a hassle to put the power cord where it needs to be if I have to remove it to travel with the laptop.) I use both monitors for my work computer and will connect just one to the MBA. I was on the hunt for a docking station for my MBA that will also work with a new MacBook and nicer monitor (replacement for the Dell) when I upgrade later this year. I was also on a separate search for a KVM switch. I blindly happened upon this KVM dock during my searches.

The reviews on Amazon indicate it will either work great or not at all. I'm hopeful that 1) IT at work won't deny the request to install the drivers (I don't have admin rights to do so) on the Dell, and that 2) the intended set-up will work.