I've used foodsaver's for many years and just got fed up with the marginal results and even the expensive bags didn't reliably seal. My new Vevor 260 is so much better. I wish I had bought it long ago. I struggled to vacuum seal a deer I got before Thanksgiving and just ended up frustrated the whole time. I got an Elk after Thanksgiving and processed the whole thing myself (not a job for the faint of heart). I got the Vevor for the job and it worked very well. I sealed 240 lbs of meat and it never slowed down. The chamber bags are much cheaper than foodsaver bags and they are pre-made so that is a big time saver.
I ended up using a 45 second vacuum time, 1.7 second seal and 3 second cool time.
My only complaint is the stainless height plate they include doesn't do anything to take up extra volume, it just elevates the bags. I bought 2 HDPE cutting boards from Sam's Club and cut them down to size and stack them, without the stainless plate. This lets me shorten the vacuum time. The top of the line competitor comes with this type of setup already. This is only a minor complaint and not anywhere close to a deal breaker. I would buy this unit again. It will definitely last me a very long time of home use, and would probably be more than adequate for even commercial users. You can buy 3 or 4 of these for the price of the top of the line competitor.