The new UI is very cumbersome to use as compared to the old UI. It would normally take 15-20 minutes per expense report, now takes over an hour to perform the same tasks, but in a less intuitive manner.

A few of the many issues I've observed:

• Previously you could easily access all receipts in the same window as your expenses. However, now a new window must be opened which has long screen loading times.
• The pop up window for all receipts is very small and you cannot sort through receipts using the zoomed in view. You need to click far too many times to find the correct receipt.
• Changing the expense type must also be performed in a different window, which has even longer screen load times.
• Saving an expense from the single expense window jumps you back to the main expense page each time, again with long screen loading times.
• You cannot click the expense name to open up the single expense window, you need to click in the blank area next to it. Not intuitive at all! 

One of the very few improvements I've found is that the new itemization feature is actually easier to use, especially when adding hotel nights at different costs per night. However, it's not very apparently in how you set that up in the first place. Previously each stay automatically populated, but now you need to select "Hotel" from the itemization menu - Why? I've selected that this is a hotel expense. Why must it be added as an itemization as well? 

PLEASE REVERT BACK TO THE OLD USER INTERFACE. It was significantly more streamlined, more intuitive, and faster.