I am getting Showerguard glass. I think it's a very worthwhile investment. It will add about $500 to the price of the glass (my shower is very large). The installers will be coming in about a week to measure for it. Once the order is placed, I hope to have the glass installed by early September (I will be away in late August, so the install won't be able to happen until September). Even though the glass place I am buying from is an official Shower Guard dealer, they were pushing a similar product called Hydroshield, but I didn't want that. I want the Showerguard because it is infused into the glass. The other thing is that Hydroshield only comes with a 3-year warranty, but Showerguard gives you a 10-year warranty. I prefer to buy something that is guaranteed for a long time. I can't help but think that Shower Guard is a better product than Hydroshield, or why else wouldn't Hydroshield also stand behind their product for a 10 year period? If you decide to go with a different product than Showerguard, make sure you carefully check out the warranty that is offered. And one other thing. If you decide to go with the Showerguard, it is supposed to come with a sticker on the side that is supposed to face inward. Watch when they do the install and make sure they don't put the glass in backwards! If you aren't watching what they do and they make the mistake of installing it in reverse, they could just pull the sticker off and you'd never know. After all the remodel problems I've had, I don't trust anyone to do things correctly anymore!

The surface of the glass is porous, you can clean it constantly, every minute of every day but unless the glass is sealed (Showerguard) the mineral deposits and other crap in the shower (soap, etc) will end up in the pores of the glass. Not a case of if rather when. Up to you, I will recommend the SG every day all day and not any of the others, but the decision is ultimately yours.

The difference between SG & HydroShield is that SG is a permanent product applied by the manufacturer. They use a ceramic based zirconium to "sputter coat" the glass which means the zirconium is atomized and fills in all the pores of the glass making the glass smooth so there is nowhere for water to get in and leave minerals which ultimately stains your glass. HydroShield is a wipe on coating that is hydrophobic which means it repels water. It's great until it wears off which is usually 1-2 years. If you are diligent and have the hydroshield reapplied regularly it will continue to do its job. If you are like most people that's not going to happen and when it wears off you will risk stained glass. HydroShield has a warranty, but it's only for the coating so if your glass is stained, hydroshield can be reapplied, but you will still have foggy glass. SG has a lifetime warranty which guarantees you will never have stained glass. It's about cleanability. There is no such thing as self cleaning glass so you will have to do the work, but SG will always come clean. Lemon SoftScrub and the aggressive side of a Scotchbrite sponge is what the company recommends and it works brilliantly. There are also a lot of other cleaners that are options for cleaning. Hope this helps clear up the differences.

@Robin - Are you saying your shower floor gets pink gunk around it if you don't clean often? I'm really not an expert at all but it sounds as though there might be issues in terms of water. My shower floor is pretty sloped (again it's not a huge shower because the footprint follows the original tub) but the shower floor gets dry pretty quickly. I do have a good fan which monitors humidity and I can hear it running for awhile after I shower so I suspect that helps dry up any residual moisture in the bathroom - including the shower floor. My shower was probably inspected at least three times while it was being built - it had to pass a 24 hour flood test and the plumbing inspectors from the City were really rigorous in terms of the whole process. I know they also had to approve the slope of the shower floor. I wasn't around when it was inspected while it was being built - although I dropped in at various stages to photograph all of the stages. However, I was back in the home during the final inspection and the inspector spent about 15 minutes inspecting the shower before giving the final approval - and that was after it had been inspected several times during construction.