We have used a Hpc 6090 for the last five years. It's a typical Chinese machine lots of ongoing adjustment and care and attention needed with few bells and whistles. (Mirror adjustment uses standard metric screws so half a turn moves the mirror a mile) but they are a reliable company who back their products carry spares and will come and mend it when stuff goes wrong. Always use deionised water when cooling its also worth buying one of their cooling units if you want to cut for long periods. Epilogue are totally different animals absolutely no comparison but the Hpc if looked after and set up well will give exactly the same results.