Instruction: Extract information from the supporting document to answer the given question.

Input:
Question: What is the difference between this product and the iSi Brushed Stainless Steel Gourmet Whip Plus?  Thanks
Document: I purchased this stainless steel cream spritzer to replace an aged one of the same brand (is there any other?) that had plastic and aluminum parts.This one works flawlessly and is rather handsome. Highly recommended.
We had a ISI whipped cream dispenser that was 25 years old when it needed to be replaced.We purchased this one, which is stainless steel, and it is even better than the first.TIP: This may sound obvious, but you do have to shake it up before you dispense the whipped cream!
Product works as advertised and my wife loves it. I was used to doing whip cream the old fashion way with a mixer but this makes it all much easier. I still wish you didnt have to purchase and then waste all the aluminum cartridges or maybe re-fill them from a larger cannister.
A genuine piece of commercial grade hardware. Like many of those who buy the iSi, I allowed Starbucks to do my product research before buying. We've bought a second unit to allow for two &#34;different recipes&#34; of contents in the same cooking session.
thanks. every thing was exactly as I wanted. I"ll  for sure  buy more stuff in this site.
I received mine in a box that had been unsealed which was my first disappointment. Second, I expected that the ISI (Austria) products were made in europe but this was made in China, seriously, you can't make enough money on a $[...] creamer if you made it in europe?. Third, I paid the extra bucks for a stainless unit and then it states on the box that the head is aluminum, only the bottle is stainless.
Great quality, sturdy, all steel!!! I went with one quart instead of a pink for party entertainment. The first thing I did was infuse some pears with apple juice and carbonate grapes. Everything came out AMAZING!!! The grapes especially, they were gone before I even had a chance to ask how they were. Can't wait to try all the other stuff this thing is capable of!!!!
I love the whipping cream machine and the amazing service I got from the vendor. The product was shipped immediately. Why would anyone ever use canned whipping cream again?
This is a fantastic whipped cream maker. If you watch any of the cooking shows these are used often and the thing that is nice about this is you put your product in and it is ready almost immediately. It produces really nice looking whipped cream on desserts too.
I love my new dessert making addition. Does the job, easy to use and easy to clean. Makes great whip cream, too.
Answer: the tips of the plus are stainless steel whereas the regular one are made of plastic. Also the plus seams to have a different head with a rubberized contour. but the functionality are the same.