solvent printer problems

We have a SolventJet printer (converted Roland). When it is printing, the results are great. But the problems seem to come fast and furious at times. Right now it is at Roland head office getting fixed after several tech visits couldn't solve the problem. Just looking for some feedback on this particular printer or on other options. Any other would need to be able to print at least the same quality and with full solvent inks (Lyson) as ours can. Thanks.