Product review (4 stars): Works okay.  Probably overpriced.
The Nina Soft spin dryer is made in Brazil by an outfit called Mueller.

It seems to do a good job, but I have no other spin dryers with which to compare it.  I would have liked to have tried the original model that Laundry alternative imported.  I actually wanted to get the less expensive "<a data-hook="product-link-linked" class="a-link-normal" href="/Mini-Countertop-Spin-Dryer-Clothes-Spin-Dryer-Portable-Clothes-Dryer/dp/B002HT0958/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">Mini Countertop Spin Dryer Clothes Spin Dryer Portable Clothes Dryer</a>" which I think has less capacity than the Nina Soft, but is less than 1/2 the cost of the Nina Soft.  The Mini Counter-top Dryer also has a built-in timer (with the Nina Soft lacks).  Unfortunately, Laundry Alternative wasn't shipping the counter-top model when I needed a spin dryer (evidently due to some QC issue).

At any rate, there is somewhat of a technique to balancing and positioning the clothes for optimal spinning and drying.  An unbalanced (or excessive) load of clothes could cause the drum to wobble excessively (which could damage the unit) and never get up to speed.

Essentially, try to keep the clothes along the wall of the "drum," with the heaviest articles of clothing on bottom and the lighter clothes on top.  Try to spread the clothes as flatly and as neatly as is reasonable (areas of the clothes that are thickly "bunched-up" along the wall tend to remain more damp after the spin).  The clothes should form a tube up the wall with a hollow center.  Folding the clothes into a strip helps avoid bunching-up.  Also, try to balance the articles on opposite sides of the drum (put one sock opposite another sock, etc.).

In addition, if you place a wringed-out article of clothing on one side of the drum, wring-out the article on the opposite side (sopping wet clothes on one side can cause wobble).

I have found that only one or two heavy pieces are possible in the Nina Soft for it to start spinning without violent wobble.

I have also discovered a special trick to balance denim jeans -- put the seat section on the center bottom of the drum, and spiral the pant legs up the sides of the drum.  Then, without adding any more clothes, spin the pair of jeans alone (with the "protective disk," of course) for about twenty seconds to get rid of the excess water.  Then, stop the spin and shove the seat of the jeans along one wall and add more clothes, with care to add a little more weight to the side opposite the jeans seat.  Then, spin as usual.

It's too bad that Mueller didn't include a manual power switch (or a timer).  The instructions actually have one plugging the unit into the wall socket with the lid closed, which starts the spin.  However, such a procedure could cause mild arcing at the wall plug, which isn't too great.  I have a short extension cord with an in-line switch, and it works well.  Of course, when the lid is opened during the spin, the Nina Soft's internal switch cuts the power to the spin motor, and when the lid is further opened, a friction strap brake closes around a flywheel to stop the drum from spinning.  I flip the switch on my cable and let the motor spin down a little before I open the lid, to save the brake.

One more thing, the water sprays wide out of the nozzle and off to one side a little.  So, get a wide, round, plastic bowl or shallow tub to catch the water.