To be fair, RE can be a pretty decent recruitment agency if you're looking for holiday jobs, temp job, or as a fresh diploma/degree graduate looking for your first job.

Because RE is one of the more established recruitment firm, they have a large clientele, ranging from well-known MNCs, to smaller firms & factories hidden in tuas. I feel that the main factor lies in the recruitment consultant that you're liaising with. If your consultant is sincere to match you to a job that you like, then you'll have a pleasant experience. Sad to say many consultants are just eager to close the contract and hit the quota, hence the bad reputation...