These stackable bands really hit the spot! If you are a hard core lifter or competitor, these obviously won't be enough. Be realistic, people! If you are a huge guy lifting a ton of weight, of course they are not for you. They are not meant for competition. But for anyone else, these are great. I have worked out for years with free weights and machines. I had back surgery this year and can't lift heavy weights anymore. But I still want to be toned and strong. I shopped around for a long time-both in stores and online. You won't find a better deal than these. The price is unbeatable and the product is of good quality. For those of you afraid of breakage, I recently was sent an email from the company stating- "We have recently extended the warranty of this product to a lifetime warranty and would be more than happy to resolve any issues with this product under our new warranty policy. We believe in our products, and want to make you a believer as well. Thank you for making ProSource, your source!"Pros:1. These bands don't take up a lot of space like free weights or weight stations. No more excuses of taking up too much space!2. I love the fact that these bands can go wherever I go and take up little space when packing. Everything fits in the little bag. Being portable, you can also exercise outdoors when the weather is nice. I love going out on my deck in the morning and breathing in fresh air. I don't especially like breathing in the air in the gyms. And I get tired of working out in the same space day in and day out...3. The ability to stack the bands gives much more resistance than other sets. More is not always better. You don't need to lug around 7 bands and 14 handles-there are many combinations with the 4 bands provided. If necessary, you can order stronger bands with the ProSource Set of 3 XTREME Stackable Heavy Duty Premium Latex Resistance Exercise Bands4. Not all sets come with the ankle attachments. And the ones that come with this set are well padded with neoprene. They are not just nylon strapping like some sets I have looked at. The handles are also well padded, but not too much.5. The door anchor works well for me. The stop is large enough to stay secure in a door when closed. Just make sure your door doesn't have an abnormally large gap before using it.6. These are of good quality and have a lifetime warranty.Cons:1. For a beginner, it may not seem to have quite enough information on exercises. But a quick look on the internet and YOUtube will give you all the information you need. And almost any exercise you have done with pulleys can be easily altered to be used with bands.2. At first, I thought I wanted a bit more heavy duty carabiners for the attachments. But that would add both weight and bulk for packing. And if they ever failed, they are covered with a lifetime warranty. So it is not really a con, after all.Resistance bands are a great alternative to weights. You don't have to spend a bundle on equipment. You don't have to fork out a monthly gym membership fee. You can take it with you wherever you go. No hassles-the convenience makes you more likely to stick with it, and you are less prone to injuries from lifting incorrectly. These are great for a guy who wants to get in shape and be toned without getting bulky, women, and older folks who don't really want to lift weights. There is a reason they are so popular with physical therapists-they work!