I've ditched a few lines along the way. After "wasting" a cool grand or so on their cordless drills I decided that there's no sense in throwing additional good money after bad. That was admittedly many years ago, but there's just so much better value elsewhere in my opinion.
Likewise, I gave up on their saws a decade ago with 3 successive "strikeouts" in the Trion, Kapex & the abominable rail jointing system of the TS55.
My SR5E extractor, 2 Duplex, Deltex & RO90DX sanders were nicked last year & won't be replaced either. The RS1C sander will, however, as it's an excellent, powerful but crude workhorse that nobody else makes: most half sheet sanders these days have <5mm orbits, making them much less effective for roughing work. There's actually nothing wrong with the Deltex apart from being discontinued! OK maybe the extra finger attachments of the (likewise discontinued) Bosch deltas make them a bit more versatile, but the Deltex was always a smoother running & more aggressive sanding alternative.
But the other sanders; the 2 Duplex in particular were just too slow in operation & the RO90 such an ill-mannered, evil handling little beast in any mode with coarse papers that I'm actually rather pleased to have them gone. A new DEOS sander from Mirka should be a more effective small orbital than the slow linear action of the Duplex, despite the convenience of their shaped bases. The smaller diameter version of the random orbit DEROS or the impeccable smoothness of the old SXE400 Metabo sanders will be much more ergonomic & easily handled than that awful little Rotex ever was
I'll keep my old Rotex 150 sander & CT22 vac going indefinitely, however. I hate the newer ones, with their stupid unreliable plug-it power cords, proprietary bayonet pad mounting & weak, flimsy hose garages. Just as long as parts are still available, I'll soldier on with these 2 gems, & look for a second hand Festo RS1C or maybe one of the short lived RS100Cs that have a fixed cord.
The old Rotex has a huge range of centre screwed Festo/ol, DeWalt, Metabo, Bosch & aftermarket sanding pads in standard 6 & 9 hole patterns plus a huge variety of multi-hole bases at much cheaper prices that allow the use of those fantastic mesh abrasives, plus hundreds of others from dozens of different suppliers. The bayonet mounted pads of the newer Rotex sanders severely limit abrasive choice.
So for me it's a bit of a mixed bag. There's 3 tools in particular that I admire & respect. Reliable old "friends" that I won't ever willingly part with. As for the rest of their range, well it's not really that anything in particular (apart from those woeful jigsaws, underperforming cordless range & that ridiculous small Rotex) that's actually bad. It's just that many of the newer tools from some competitors are just so much better: in design, performance, reliability & (subjective) value.