The 3 kits I manage on FTDNA have, as of this evening, 8708 matches (of which we know links to about 6- 3 siblings, 2 other siblings & one other person), 9349 matches (of which we know links to 1, yes ONE, person- parents were 2nd cousins once removed which means we can even divide clearly into paternal & maternal matches) and 6326 matches (many of which are identifiable relatives).
Even though the 1st two kits (distantly related to each other) seem a bit vague the results are still very helpful as using the results, extensive family trees and DNA painter we are starting to plot out possible connections which is adding a bit to both families.
My biggest problem with My Heritage is not the number of results (lots more on my 3 kits here) but the 'helpful' weekly updated. Kit #1 has a known relative who tested there and each week we send each other the weekly report- never, ever have we gotten the same people in the 2 lists and they are almost solely '3rd-5th cousins.'
One thing My Heritage has done is match me with a VERY close relative which has created a very difficult situation since they've now added a newly discovered 'grandfather' to their tree instead of their father's real father.