Been plenty of comment over the years (hint : use search facility)
Personally can't remember a client of theirs posting a negative opinion.
I
have used the search facility for this in the past, and have just repeated the exercise this morning. Doing a content search on "prospreads" gave 174 hits. I looked at some of the indirect references as well but no doubt there were some I missed. Several of those hits were in fact my own questions about them.
I now have a list of 3 definite users here who have reported positive experiences.
1 other who tried it in the past and found it expensive.
2 others who it's not clear if they were live trading with them or not.
3 others who it's not clear if they are users of them or not, including your good self, who has made several comments within threads which refer to them, but I didn't find one in which you definitely said you were one of their clients. You may wish to clear that up now if you like.
I did not on this occasion search explicitly for "futuresbetting" although I have done in the past; I found some references to them in my search for prospreads this morning, as you would expect.
So, I wouldn't exactly call this overwhelming (in a positive or a negative sense), which is more or less what I was saying in my previous posting on this subject. However, I think I have the general picture of what they offer, their advantages and possible disadvantages. I won't bother rehearsing those here, especially as it would not be from first-hand knowledge in my case.
What I still have not seen here are any postings from people who have used both FXCM and Prospreads and some kind of comparative review although I have explicitly asked for this on at least one occasion, having been surprised not to be able to find such a thing already there. I haven't even had a reply such as "You're talking out of yer orifice Mike - they are in no way comparable!". I'd be happy to accept that reply from someone who has actually used both of them.
When you say "can't remember a client of theirs posting a negative opinion", based on those 174 hits I mentioned above, then I think I would agree with you. There was some negative comment (mostly about relative cost), but except in the one case I mention above, this all seemed to be from non-clients of theirs, i.e. people who had never actually tried them.