hanbell screw with mcs controls, vs mcquay screw (series 1 200kw)

[sweimaker]

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we currently have 2 faulty mcqauys with the screws that as mcqay say "just blow up" poor design, both systems 40kg short of 407c, star veins both in peices, compressor UNREPAIRABLE!

mcquay can retrfit the 2x newer compressors, new controls new exv, an have a better effiency between 15-30% at 30 less running costs, (what they say)
or we have had another company willing to

retrofit to hanbell compressors with mcs controls invertors for fans
(we will have acces to all mcs software, where as we all know mcquay can be supertight) at a good 15k cheaper

any experience with the hanbells and the mcs, they are twin screws no star drives, any prown failures.

any advice or comments i hugely appreciate