Hi Stigg.We have a silver tank from the same guy,have had it for about 6mth's now.Afew things to mention.
1- I agree with Stompa,go for the in hood filter.
2-Our one has a piece of thin polycarbonate or similar plastic sheeting to splash protect the in hood lights, check this is so as there seems to be some variances with different models.We have another Sun Sun which doesn't have this.
3-Check Front to Back measurement.Different colours seem to be different.We picked silver instead of Blue/White and ended up with 200L not 230 - 240L.Did not realise until we got home to the fabulously sunny B.O.P.Where it never rains.
4-Glass thickness is not great so must assume its probably toughened glass.Personal choice here.
We are happy with ours and will probably buy more in future.
Cheers Brian.S. PS Check his heater prices.