It is not possible a similar quality at this price!
The delay-reverb is gorgeous, the sounds were clear everything (heat-magnitude-clarity-precision) and the saturation resolved though with too much drive are pretty transparent and understandable.
The HP sends a huge potato (you should be able to make 140 servings of French fries to McDonald's ...) but can not of course prevent the usual tin can effect small combos. The replacement will not be obvious he is 3 ohms, and finally with the amplification transistors as they do not fall below are not to worry. Hp external outlet (which cuts internally) is relevant I think.
General mechanical printing: junk, for the 30w too. By plugging the guitar back panel is half a centimeter, never seen a mounting also feeble. The panel of bat wings does not fit, turn it up a bit short and it vibrates to remove.
Legibility is poor in that the control panel is not tilted up (or any guitarist is over 40 centimeters).
Otherwise it's fairly intuitive to use, as it is not drunk in which case the hundreds of LEDs present double and then good luck eh.
I had the spider 30 version 3, no comparison and I weigh my words. Version 4 (twelve models, effects and reverb and delay separated) on the other hand is competitive, easier to use more readable and much more solid.
The vypyr 15 is incredible level sound, but inspires no confidence as it is junk, I bet not even 50 euros on it.