They are no harder to work on than any other EM.. the Jones plugs on these and Playmatics are very flaky though.
Recel and Playmatic games are not the most desirable.. normally very limited game play with not a lot of imagination thrown in. These 2 manufacturers are a classic example of Europe just not quite getting it right.
At $700 though, its overpriced and not worth a cent over about $450.
If you are prepared to spend $700 or a little more on an EM then there is much much better buying out there IMO