Care to expand? I have some gripes with them myself, but I haven't demanded enough of their stuff to find technical issues yet. My problems are of the "oscilloscope is pestering me about windows updates" and "service manuals suck" variety.
I will always look elsewhere now. If you have to throw something away every 2 years, might as well buy some Chinese junk instead (Siglent / Rigol etc). Aim-TTi are still good though - the last bastion of stuff that isn't shite.