We have had our 2016 MBS 2400R for 9 months now and enjoy it. We have had several RVs of all types and have had a few issues with all of them and this one is no different. So far, the MBS chassis has been great. My biggest complaint has been the interior trim attachment to the slides, it needs to be more robust. Our trim was being pried off from deploying the slides and not getting off the switch soon enough when the seals contacted. My other complaint is the GPS in the Jensen unit. I you are like me and many others, you will end up getting a Garmin RV760...trust me.
As far as the counter space, yes it is an issue and we use the flip up extension when we need space for the coffee maker or toaster. That works fine until someone needs to pass thru the door then you have to work around it.
The mattress is not bad. It is made in 2 pieces with a slanted joint so one half slides over the other when closing the slide. We have a 2" memory foam topper on ours and it is very comfortable. We leave the bed made up and when we close the slide it bunches up nicely.
We opted for the jackknife sofa in case we needed extra sleep space, but it will only be suitable for children. We may have been better off with the dinette so we would not have to deal with the table that stores beneath the sofa.
I suppose space sacrifices must be made for a unit that is as maneuverable as the MBS. It handles great and the fuel economy is a big plus too!