I bought the Echo PPT-2620 with the loop handle and the 4 foot extension. About 16 or 17 feet overall. Here it is extended to about 14 feet. Many of the limbs in this tree are somewhat rotten and unstable.
For me, it's an indispensable tool, but big and heavy and ungainly, and rediculously expensive. The extension seems somewhat fragile, but it is for the most part very sturdy.
And once installed, the extension makes it very easy to break it down into two pieces for easier transport or storage. Without the extension installed breaking the pole down is quite a chore, and putting it back together a pain in the rear.
The PPT-280 is a foot longer, a pound heavier, a little more powerful, and $60 more expensive.
I wouldn't mind the extra foot in length, but the 2620 has enough power to get the job done, and I can do without the extra weight.
I thought about the Echo PAS attachment system, but even with the extension it was only 11 feet I think.
I've cut a lot of high branches that were hanging over power lines. And other high unstable branches from roof tops. Stuff that otherwise couldn't be done without a bucket. And getting a bucket in place could tear up a yard, especially when everything is soaked.
Sometimes I feel the need for one of those 21' Silky Hayawatchamacallits. But another $300. And there's no way I'd want to make as many cuts as I do with the power pruner while nibbling away at limbs as to not drop anything too heavy on the roof. It's a good idea to put some plywood down anyway to prevent roof damage.
But still that 21' would come in real handy.
And I've used a shorter manual saw with the rope lopper often in the past. With dead braches often you can just hook them and break them off. Sawing with it is slow though.