Use comparison. There are lots and lots of sprayers and each of us uses our own variation of tools. So this review represents my own biased need for flexibilty and overall ease of use. I do not need or own a Hydroforce and have moved from backpack sprayers to the cordless. I also use quart squirt sprayers for specific chemicals. Your mileage may vary.
I tested the IPS at about a half charge with the Worx At half charge. The Worx battery has a built in led guage to tell you how full it is. The IPS I just guessed.
I wanted to know two things; which sprayer lays down fluid faster and which sprayer shoots farther?
As I wrote before, the Worx was designed for washing and so it has two pressure settings. It also has a pickup filter that needs an inch of fluid to be submerged. So I used the lower setting, to best compare the two. I then prefilled a five gallon bucket to just over the filter, then added one full gallon of water from a jug.
I filled the gallon jug again and put the hoses in each, respectively. I put the larger (blue) tip on the IPS and set the Worx to its widest spray, 40 degrees. I wanted to simulate prespraying carpet.
Squeezing the triggers simultaneously, my helper and I learned that the IPS primes itself (longer tube, smaller diameter) first. When the Worx was primed, We then squeezed both triggers and held them until one had emptied its gallon and hose, to see which was putting out more liquid.
To my surprise, the IPS won. I measured the remaining water and found the Worx had two cups in the bucket (above the filter) and whatever was in the hose.
My helper and I both thought the IPS put out a more fine spray (60 degrees) than the Worx, which is a bit splattery. The difference would matter to me when treating ceilings or upholstery, but not for carpet.
We then switched to straight stream. We refilled the bottles and holdig the sprayers side by side and parallel, shot them to see which sprayed farther.
There is no question that at high setting, the Worx sprays harder. But the IPS stream stayed together farther while the Worx began to fray and break up soon out of the nozzle. End result is that they both shoot the same distance!
This would only matter if like me you wash windows. At close range, the extra pressure of the Worx could help flush off equipment, grass clippings and so on.
So which sprayer is "The Best"?
They weigh about the same and feel solid.
Fully equipped with two batteries, the Worx is about $180.
Fully equipped with two batteries and viton seals, the IPS is about $250.
For grab n go, rugged and foolproof, the Worx is clearly more convenient, but MUST be given a better pickup filter that sucks fluid to the bottom of a bucket. Longer hose would be nice. A short pickup tube can be made if you copy the factory one. Easy fixes.
What is really nice for carpet cleaners is the 0-40 degree adjustable spray head. Want to snipe spots? 0 or 15 degrees. Want to lay down a juicy prespray? 40 degrees, right there and no small bits to lose!
What really stinks for carpet cleaners is that you are (somewhat) limited on permissible fluids. For encappers, no problem.
For versatility and precision in cleaning, the IPS offers angled tips and longer reach, but very limited spray options, straight stream and wide angle.
The IPS comes in a nice but tight case, requiring full assembly and disassembly unless you build some rack in your truck. The IPS has two pickup tubes, a short one for carrying, a long one for doing rooms.
What really stinks is that you have to fiddle with the IPS so much, but then again you can pump nearly anything but hot solvents.
Encappers, the Worx with new pickup filter.
Broad spectrum use, the IPS and bring your wallet and time assembling and disassembling.
I hope this will help you decide.