As with any bit of kit, a huge price tag doesn't mean it's the best bit of kit.
Few years back I went with a cheap cleark vac and Ali poles - hate the thing! So hard to use and doesn't always do the job. Poles always getting stuck or spin even when clamps are on really tight.
So looking to get a new one but will only get used on average once or twice a month.
At the mo I've been put off doing gutters as I really do hate this clearer vac and Ali poles