Most of these flaws probably can be applied to the PCs and CP/M word-processors of Amstrad, a UK consumer electronics company who started to make PCs in the mid 1980s after having some success with their own 8-bit machines before then. Most problems were due to saving costs.
Early PCs featured the power supply built into the monitor, which, coupled with non-standard monitor ports, made replacement difficult. The power-supply wasn't rated high enough to drive many expansion cards. The units themselves, being maninly plastic, had terrible shielding problems causing severe interference. They keyboard and mouse also used a non standard interface; not only was the connector different, but the different keyboard drivers made the supplied version of MS-DOS mandatory.
Later models had better PC compatibility, but some suffered reliability issues due to Amstrad's proprietary hard disk controller. These were so bad that later units were retro-fitted with an standard off-the shelf controller, taking up one of the three expansion slots.
The CP/M word-processors originally shipped with 3" floppy disk drives, which were almost exclusively used by Amstrad. These units also had no on-board ROM; the printer ASIC supplied the process with the minimum instructions to boot off a floppy. The majority of the printer electronics were in the base unit, which meant that the printer itself used a non-standard interface and couldn't be replaced with purchasing a third-party serial interface. Although these machines were supplied with 256 or 512 MB RAM, the majority of the memory could only be used as a ramdisk.
Amstrad also produced a couple of portable machines. They did have a full-sized keyboard, but unfortunately came with a tiny LCD screen. They were also floppy only without third-party expansion units.