Any luck with Xeltek programers?

Has anyone here had good or bad luck usung Xeltek EPROM programmers? I woke up to find my TOP2048 burned a bunch of internal transistors again (this is my second one in a year now) and my TOP2049 wont program some of the older chips I need for my old arcade boards (although it still programs the newer larger EPROMS fine). So I am thinking its time to invest in a nicer programmer. Although I dont have a ton to spend I was thinking of the Xeltek SuperPro-280U but dont know alot about them.

I've been a long time user of Xeltek devices. For their USB models, I've used the 280 and 580 and they are both great units.

Jeff