Ducati are giving out free Termis in the UK to boost 899 sales but after speaking to several sales reps people who already have an 1199 might not like it - the reason being the same as the 1199 when it came out, it lacked mid-range compared to the 1198 line of models. The 848 had a similar characterstic to the 1198 with lots of mid-range but the 899 lacks all that similar to the 1199 when it came out and everything is on the top.
He said it feels like the 1199 in Wet Mode with everything packed up on top. I was told that he prefers the 848 instead because it has a useable mid-range and nothing mental like the 1198.
One thing I would do for sure is to order an 899 seat, its really nice and soft and has that grippy fabric on it as well.
The sales rep who I was talking to also races bikes also said that it can be a good track bike, people will enjoiy it more because the power is a lot more useable and everything is up top like an R6, not sure how it is for 'the street' when there is not much mid-range.