I would also have a look at M&S sartorial /Savile Row inspired range. They are well built and fairly priced. In general, stick to characoal grey or navy blue, solids with no stripes or other patterns. Classic menswear (as traditional shaving) is coming back ...
Do not go for "designer" type slim lapels, low rise trousers, short jackets and super slim look. Instead look for a well fitting suit, that follow the classical rules will last you a long time and will look good in every possible occasions. So what are the rules:
Lapel width min 8cm, better if around 10cm. Buttoning point around the navel point (belly button). Jacket need to cover one's butt, at least pass the gluteus fold. The sleeves should show 1/2 inch of shirt cuff. Trousers rise must be heigher then jeans. At least it should get as close as an 1- 1 and 1/2 inch from the navel point, or better cover it (you won't easily find such a rise off the shelves but that is what bespoke wearers gets). Finally, the trousers should either fall straight and end just touching the shoes (called no break) or a bit further down, causing a clear fold on the front of the sheen (with break) and straight behind the calf. Avoid many folds that indicate poor fitting trousers.
When fitting for a jacket, make sure that it fits in the shoulder and collar (it should hug your shirt not leave space all around or on one side) and is long enough. Sleeves and width around the torso can be altered / take it in fairly easily and cheaply, but do use a good alteration tailor rather then a corner dry cleaner.
Hope it helps, but if you have questions feel free to ask
