Broken spring after the third use - HORRIBLE Customer Service
936397
Starting to doubt quality already.  On the third use, the tension spring for the belt broke and I am still trying to get ahold of Customer Service at Swisher to get a replacement part.  I have been calling and emailing with no responses.  They NEVER answer their phone...always goes to an answering machine and no one ever calls back.

If you are considering another model, might want to avoid Swisher as they likely won't back you up when something goes wrong.
330978
One of the plastic piece that holds the spring broke after two weeks of use. It says that there are no returns but I will try to contact the seller always.
1600417
It stopped working a few days after the last return date. Used it almost everyday for less than 70 days.  Also, as others reported the spring mechanism to open stuck, and had to be pryed open.  Not worth it!
623252
I bought this in January of this year and used it maybe 10 times. I just went to use it again and it's broken.

Updated - I contacted Crane and upon sending them some information, they will be shipping out a new unit.
3180430
I have purchased this product twice because I liked the shocking function but both times the product has broke after a short period of time.  As a mechatronics engineer who has taken the unit apart, it is a poorly designed and that has caused it to be prone to breaking.  But I give them credit, when it works, its a great concept.  They said they would get a replacement unit to me, but 6 weeks later, I still have not received a replacement unit despite checking in with them every week.  Given the price and emptiness of their warranty, I would advise against purchasing this product.
1268203
I ordered this product on the recommendation of a friend, in order to get some basic cardio exercise while at my desk at work.  For the first month I really liked it, was able to lose ten pounds in that time while using this in addition to other lifestyle changes.  After about a month and a half, the hub end cap had detached and would fall on the pedal, rendering it unusable.  The rubber grommets on the axles had essentially disintegrated, and would leave black dust all over everything.  Amazon was kind enough to let me exchange it, despite the return window having closed.  I received the replacement unit, and had to immediately return it, as when it was placed on the ground it would not sit flat due to the entire assembly being twisted.  Exchanged once again, and the third and final unit was received with the same pieces as the first unit already broken.  I almost suspect they replaced the grommets on the first unit and then sent it back to me.  Based on THREE DIFFERENT UNITS wearing down or being defective even before use, I would not recommend this product.  While the first one worked for a few weeks it was great, but it quickly started falling apart after a few weeks of medium use.

On a positive note, I would like to say that Amazon's customer service on this issue has been phenomenal.  After explaining the issue via email, they created a special return so that I could exchange the item.  After finally giving up and requesting a refund after the third returned item, I had received notice that the refund was completed, but I had not received the refund.  I discovered this on Christmas morning, and sent them an email then just so I wouldn't forget, and within half an hour I had a response, and the refund issued within two hours.  While the manufacturer may not care to make a quality product, Amazon certainly stands by their orders.
2965698
I have only had this about 6 months. One of the springs broke, and two of the legs are VERY loose where they screw into the base and are about to break. I contacted the company and I have to pay to get those replacement parts after only 6 months? It will cost about 20 dollars for two springs and three legs plus shipping. 20 bucks on a 50 dollar item? It's unfortunate because I've really enjoyed this for exercise, but it will not be a long term piece of equipment for me.
3831337
This stand worked great for a little while and then developed a stress fracture at the base which widened until the leg broke off completely. I wrote to Artisul and was promptly written off by their customer service and was told this was the first they heard of this sort of issue so they wouldn't replace it and couldn't offer me a replacement part to purchase. As far as I can tell this was a manufacturing defect and not due to anything other than regular use on my end. If you are going to change $55 bucks for a piece of molded plastic you should treat your customers a little better or at least ask to see proof when a customer complains of your product breaking so that if it IS a defect on your end you can address it and improve your product.

I won't be doing business with Artisul again.
1621139
My daughter weighs just over 100 lbs and uses the trampoline almost every day for basic bouncing while listening to music. Springs started breaking months after purchase...now unusable (not safe) and springs impossible to find for replacement. Hate to just replace whole thing but going to have to and then purchase better quality trampoline...disappointing.
4178424
This is a piece of crap- It seems and feels nice but the spring came out of the clip and now it's useless. Although I purchased it a while ago I don't think it's been used 6 times.
4052487
One of the springs has failed in one of the stands- so not only does the spring not respond, but it also won't support that segment anymore. I recommend going for a different stand- in fact, I would stay away from springs all together, and go for air-cushioned, or good ol' fashioned C-stands.

EDIT-

Not actually broken, it's just that the bolts that hold the semgents up become loose. I carry a hexagon-wrench thing around in my camera bag in case they ever loosen up (which they do from time to time- no biggie if you have a wrench), but they have worked out fine, especially for the price.
3474850
Defective . Returning  A spring fell out of the box
No mention of a spring anywhere
760514
Broke on the third use, will no longer hold pressure. UPDATE: JACO sent a replacement unit per their lifetime warranty. I have updated my original review in light of the excellent customer service.
1131856
The unit itself performs as advertised, I would probably rate it at 4 stars.  Unfortunately, during normal use the lighter tip came unscrewed and the internal spring was lost.  My first email to their support resulted in a response asking for more information, which I provided.  6 weeks later and multiple emails to support has resulted in nothing!  They are simply ignoring all my requests.

So while I like the unit when it's fully functional, I can't give more than 1 star to a company that ignores its customers.
3307565
Used a few times, now spring button doesn't stay in selected hole which causes entire assembly to collapse and not maintain selected length.
57005
I got this product at the end of June and used it over 2 weekends.  Loved it, loved how clean I was able to get my bath and kitchen.  On the 3rd weekend, the little orange button on the handle broke and I couldn't attach any of the attachments and therefore could not use it.  I spent the next 2 weeks trying to contact Haan to get the piece. They put you on hold forever and never pick up the phone and don't respond to any emails. I then had to go out of town on business.  When I got back I went to return it and found it was past the return window so I spent $150 to clean my bath and kitchen twice. Not a good deal.  Beware, if it breaks, don't even try to contact Haan, send it back immediately.
1942235
I purchased this watch and the pin holding the case and band together literally fell to pieces within 3 months of normal, even somewhat gentle, wear. The watch claims to have a warranty of 3 years against manufacturing defects and when I contacted the company initially they told me that part was not under warranty and they would send me a replacement pin at no cost to repair myself. I didn't like it, but I took it. Less than 2 weeks later, it broke again, this time, more like shattered. The company keeps telling me they will fix the band as a courtesy even though they don't consider it under warranty. When I sent it to them, they then turned around and claimed damage to the case that wasn't there when I sent it and wants $69 to repair it. I'm currently arguing with them to either refund, exchange or repair it per their warranty. This company stinks to do business with. Too bad, it was pretty sitting in the box.