Super thick mover's blankets are also a good option if you want something easier than vocal "booths" and filters.
You can hang or drape them around you and they'll generally even do a better job, especially since you can layer them.
Or just regular blankets too.
You avoid the combing/phasing of a booth. You never want your mic near a surface for that reason. Things will start to cancel out.
Just another idea being tossed out there, because blankets are easier to get then ordering the other stuff online.
Remember, a cardioid mic already rejects sound from the back and sides. So under normal circumstances the echo and reverb will be coming into your recordings from the front of the mic.
A reflection filter just adds more protection to the back in which the mic is already rejecting for the most part.
Also sound is more three dimensional and coming from all directions while reflection filters only deal with the back and maybe a tiny bit into the sides. Sound will be coming from the top and bottom as well.
Ideally you would be dealing with behind yourself more than in-front.
I can see the blanket method bringing good results (I've done it). The only problem I can see with it is discomfort; which has me re-record multiple time because the blanket slipped from my desk or other mishaps. I think if you properly line up these booths, they would have similar results. (Just as adjusting yourself can have different results for your mic. Distance... ect. ) I'd say it depends on the user's situation and what they are willing to get for their situation. (which is why I originally provided sound booths. I would recommend a blanket but, that's me. I know a lot of voice actors who find these booths useful, so I felt I may provide them.)
But yes, the any cardio mic does record from the front. But for mics like the ATR2500, there is no option to have it stop it from recording from all directions. (although the quality is good.) Which is why I would recommend a sound booth or a thick comforter blanket with that kind of mic. I do thank you for putting this here in the comments though. Some people may want to use this method to save some major cash. But for those who want to record full on naturally without any issues that your method may bring like discomfort or the blanket causing a lot of issues with their stand ect; I'd say, go with the 60 bucks.