Bought the two frame basic electric spinner rather than keep borrowing a manual spinner from a friend.
This (electric) spinner is clearly a less expensive, more basic machine than our friends. The metal-work is very sharp in places - be prepared to glove-up and file sharp corners and edges to avoid cuts and bloody-honey! Likewise, the two frame (cheapest) version takes time to get through a full super, and the holders are not really designed for "British National" supers, but with care in positioning and a little faffing, they work (and could be adapted to hold the frames more securely, giving better extraction, less damage to the frames/comb and reduced vibration).
Unlike our previous (borrowed) spinner, this has no strainer and "under-container" to get the initial debris and stray wax from the spun honey. The spinnings just fall to the base, where a flippable, side-gate valve lets it out so the user must then strain and bucket separately.
Once the frames are balanced, the power available from the motor is good. Indeed, using the highest setting is really too high and even wired-foundation frames warp and damage - but this is easily avoided by turning down the speed and being patient.
So, overall is this a good buy and is it worth buying?
Other than the clear issue of the sharp edges (leg edges and especially though around the motor and support) making it "dangerous" to use, the spinner is effective and good value.
If like us, you are looking for a low-cost unit to spin a few supers a season, it's great. If you get loads of honey (maybe your hives are close to a reliable food-source) then this model is probably not for you and a larger 4 frame or higher would be needed.
Grzegorz 
