I found Zbigz a very useful website.It works very fine for me and also there is no speed issue.
I personally experienced that It’ll no create any speed related issue for the downloads.
However It doesn’t support the downloads above 1 gb so It is one of the bad part of it.Sometimes It doesn’t let us to continue our download if we close the download window.
One benifit is that we don’t need to download any software or we don’t need to register over there.
It is not a good solution for downloding the movies because most of the movies exceeds 1 gb of file size.