I like the speed and simplicity of the Fisher Delta but do feel the odd corner was cut with the kit supplied by RepRapPro.
After some frustration and wasted time with the auto leveling playing up (where the bed switches were open circuit in one corner or the other) I found that the three springs underneath the Print bed were so weak as to have bent and distorted. A quick fix was to replace them, however sourcing these proved tricky until I chanced on a Hilka 200 piece assortment. Quite what to do with the remaining 197 springs will become apparent in time I’m sure.
The original springs
The new springs
Artbot2 