Have you tried pointing the spraybar exit points at 5 or 7 o' clock, to it aerates the water really well without creating too much lateral flow?
Does the output rate look anything close to 2000 litres per hour?
Do you reckon it came with enough media for the baskets?
What do your fish think so far?
Did you keep your old filter running and place some of its sponges into the 2000EF (in layers first exposed to incoming water) to seed the new filter?
I've got my own filter realted task today, after receiving my 5Kg of Eheim's Substrat Pro for the super price of £31.50 including p&p from Ebay. I need to remove the lower half sponges from my existing Eheim 2078 into the top baskets of my new FX5 (£137.50 bargain on Ebay, new) and then add the Substrat Pro to the lower baskets of both filters, so that the bacterial colonies will migrate across to the new media. After a few weeks, I will have the option of then moving the Eheim back upstairs for the Rio240, as the flow output from the Juwel 1000 pump on the Bio 8 filter is nothing short of pathetic (but that's fine while the Lionhead fry are little, albeit I swear I can see they've grown every day).