Very good board, worth the money, although I ended up with a defective one.

Easy to inflate (it takes a bit of work with the pump, especially after 10psi, but it's nothing too terrible, just a 5-minute job. Alternatively, with a special adapter for sup, you can use an electric one, although it's not necessary). For transport, you can find a shoulder strap, which makes it easier to carry when it's inflated. After use, just rinse it with fresh water and deflate it a bit, so it's not fully inflated.

In terms of paddling, it's very easy, we had no problems, even with small children, even though it's a large board. Once you get used to it and learn how to do it, you can develop good speed and it's also a nice workout. The materials seem to be of good quality and I think I just had bad luck and ended up with a board that had poor adhesion, which opened slightly after 3-4 uses and started to lose air.

The seller gave me a refund without any problem and the truth is that I would buy the same one again if I found it.

After researching and determining whether I would like the sport or not, in order to buy something truly Touring and high-quality, I decided to get an affordable value for money all-around board that would teach me balance and wouldn't be a waste in case my interest in the new sport was short-lived!
In the end, I made a good choice! For the money I paid (under 290€), the board is really good for a rider weighing 100kg and measuring 1.88m like me (I got the 11-foot). I only fell with small waves. The only thing that somewhat ruins the experience is the unsatisfactory locking of the paddle on the top part, resulting in it often coming loose and requiring you to stop and tighten it again. Despite that, and because I know that aluminum paddles at these prices are meant to be replaced, considering the money I spent, I can't take anything away from the board. Lastly, I inflate it in under 5 minutes without any effort (I'm a bit weak) and much earlier than the 12 minutes I see on the internet! You don't need an electric pump if you have a similar body type to mine and you get a SUP.

I bought the SCK Epsilon 11 on July 23, 2023, one day before my five-day trip.

On the first day of vacation, I inflated the board and used it for about 1 hour, then deflated it and placed it in the bag.

The next day, when I inflated it again, I found that it had a hole on the seam and was losing air.

I informed the company and to their credit, they told me without hesitation to contact SKALIDIS, where I had purchased it and is their partner, to inform him that we have spoken so that he can replace it for me.

By the time I returned to Athens from my vacation, the new board was already waiting for me at SKALIDIS for me to pick up.

Then, throughout August, I used the board daily for several hours. Despite being a beginner, due to my enthusiasm with the SUP, I even managed to do 10 kilometers in one day.

I had no problems with the board until I stored it for the next year.

As for stability and other aspects, I can judge it as a beginner, of course, but it seemed excellent to me. I think it is very good for beginners to start with, but also for slightly more advanced users.

The 5 stars are primarily for the company's immediate response to the problem without causing me any inconvenience, and then for the board in general.

Credit also goes to SKALIDIS, of course, because wherever it was needed, it worked perfectly.

We have used it twice so far for 3 hours. The kids treated it like the most demanding quality engineer test and it had no problem. It seems quite durable, I hope it will last a long time because it really is the ultimate water toy for both kids and adults.

A few extra information about inflation/deflation.
Inflation is a bit challenging but not crazy. Pay attention as the instructions state, we inflate up to 7 psi with the side valve cap closed (double action) and then remove the cap (single action) and continue until it reaches 13-15 psi, which is when it gains maximum rigidity. At 13 psi, it is perfectly stable, even at the weight limit.

When deflating, be careful not to be above the valve when you press it because the air comes out with a lot of pressure. After it deflates a bit, we twist the valve so it remains open. After most of the air is out, we screw the hose onto the bottom hole of the pump and it will suck in air, making it easier for transportation/storage.

Note: The 11' is 3.35m, not 3.5m as stated here.