They can be made to work great (as seen in this forum), but one of the key things is how easy it is (or isn't) to shorten the overly long tongue. On the one you are showing the front wish bone portion of the frame looks like it sticks forward quite a bit with less tongue sticking out than some others that I have seen. Looks like a nice trailer, but you may want to take a minute to figure out your desired cabin and tongue lengths, then figure your axle placement, and see if these are easily accomodated by any trailer cannidate.
On my boat trailer

the frame doesn't sweep forward as far and the tongue would be much easier to shorten.
Generally the axles can be moved around quite a bit, by design (there are usually a lot of extra mounting holes) so you will want to compare where the 'Y' is to how short the tongue needs to get, to where the axle can be, and then see if you need to shorten (or lengthen) the rear of the frame.
Does that make sense? (babbling)