I've tried Lesco's pole pruner, Used one time, you can have it! It's heavy and the hook type cutter head does not allow for flush cuts. At around $90 it was not worth it.
I've run a wolf system pole pruner with anvil head pruner and pruning saw (with short handle) for at least 15 years and love it. I've replaced the pole once because it was worn out and once because some dingbat broke it. (Which is why I tried the other one .....) Lightweight, nice operation, interchangeable heads. I priced a full replacement once and it would have cost around $300 I think for the pole, pruning head, saw and short handle. $20/year ain't bad.
You did specify "Manual", which Stihl obviously isn't.